The 1981 Buick Regal was the year the nameplate found its shape – literally. A major facelift gave the Regal coupe a dramatically more aerodynamic profile with a sloping hood and nose, and the reason was not fashion but racing. NASCAR Winston Cup cars were built from factory body panels, so a slipperier showroom Regal meant a faster race car. It worked immediately: Richard Petty drove a Regal to victory in the 1981 Daytona 500, Darrell Waltrip took the championship, and Buick claimed the manufacturers’ title in both 1981 and 1982. On the street the Regal was Buick’s best-selling car by a wide margin, offered with a V6 standard, a turbocharged V6 for those who wanted speed, and a small V8 – and the aerodynamic body it received in 1981 would carry it all the way to the Grand National and the GNX.
Table of Contents
- Overview and History
- The Aerodynamic Facelift
- NASCAR Success
- Models and Trim Levels
- Engine Lineup
- The Turbocharged V6
- Transmissions and Drivetrain
- Chassis, Suspension, and Brakes
- Interior and Equipment
- The 1981 Indy 500 Pace Car
- Collectibility Today
- Key Features Summary
- Full Specifications Table
Overview and History
The Regal had been downsized for 1978, moving onto GM’s smaller rear-wheel-drive intermediate platform with a 108.1-inch wheelbase and an overall length of about 200.6 inches – considerably tighter than the 112-inch, 212-inch first-generation car it replaced. That second-generation body would run through 1987, but 1981 is the year it became the shape enthusiasts remember.
Buick’s problem going into 1981 was straightforward. The Regal was selling well as a personal luxury coupe, but its upright, square-edged nose was aerodynamically poor – a real handicap on NASCAR superspeedways where bodies had to be based on production sheet metal. Buick’s answer was to redesign the front of the car specifically to cut drag, and then go racing with it.
Commercially the Regal was Buick’s cornerstone. It was the division’s volume leader by a large margin in 1981, with production commonly cited at around 240,200 units – more than the LeSabre, Electra, Riviera, and Skylark combined. The personal luxury coupe was exactly what the American market wanted, and the Regal delivered it with Buick’s traditional smooth ride and a strong V6 story at a moment when fuel economy mattered more than ever.
The Aerodynamic Facelift
The 1981 restyle was a genuine engineering exercise rather than a trim change. The Regal received a noticeably sloping hood and nose, softening the blunt front end of the 1978–80 cars and cutting drag substantially. The roofline and rear were revised to suit, and the overall effect turned a boxy coupe into something visibly sleeker and more purposeful.
This mattered because of how NASCAR worked at the time. Winston Cup Grand National cars were built from factory body panels and production designs, so aerodynamic advantages had to be engineered into the car customers could buy. Buick took the “win on Sunday, sell on Monday” principle to its logical conclusion and reshaped the production Regal for the race track. Several NASCAR teams switched to the Regal precisely because of that sloping nose.
The shape proved durable in every sense. It carried the Regal through 1987, underpinned the Grand National that arrived in 1982, and ultimately provided the body for the 1987 GNX – still the quickest-accelerating Buick ever built.
NASCAR Success
The racing payoff was immediate and emphatic. Richard Petty drove a Buick Regal to victory in the 1981 Daytona 500, and Regals went on to win the majority of races across the 1981 and 1982 seasons. Darrell Waltrip took the 1981 Winston Cup championship in a Regal, and Buick claimed the NASCAR manufacturers’ title in both 1981 and 1982.
For a division whose previous NASCAR win dated back to 1956, this was a transformation. Buick had deliberately engineered a production car for the race track and been rewarded with a championship in the first season. The success directly inspired the Regal Grand National, introduced for 1982 and named after the NASCAR Grand National series – the beginning of the turbocharged performance lineage that made the Regal legendary.
Models and Trim Levels
The Regal was a coupe-only line in 1981 (the Century still handled sedan and wagon duty, though those bodies would be rebadged as Regals for 1982). Three versions were offered:
- Regal Coupe – the base car, $7,550
- Regal Limited – the luxury version with upgraded interior trim, $8,025
- Regal Sport Coupe – the performance model with the turbocharged V6, $8,530
The Limited was the volume seller among buyers who wanted the personal luxury experience, with plusher upholstery and additional brightwork. The Sport Coupe was the enthusiast’s choice and the direct ancestor of the Grand National line.
Engine Lineup
The Regal’s engine story in 1981 was all about the V6. Buick had been developing its 90-degree V6 into a genuinely capable engine at a time when most of the industry still equated performance with displacement.
231 cu in (3.8 L) V6 – standard. A cast-iron overhead-valve V6 with four main bearings, hydraulic lifters, an 8.0:1 compression ratio, and a two-barrel Rochester carburetor, producing 110 hp at 3,800 rpm and 190 lb-ft of torque at a low 1,600 rpm. Smooth, economical, and entirely adequate for the car’s luxury-coupe mission.
231 cu in (3.8 L) turbocharged V6 – optional. The performance engine, rated at 170 hp and a substantial 275 lb-ft of torque. Standard in the Sport Coupe.
265 cu in (4.3 L) V8 – optional. A Pontiac-built V8 with an 8.0:1 compression ratio, five main bearings, hydraulic lifters, and a two-barrel Rochester carburetor, making 119 hp at 4,000 rpm and 203 lb-ft at 2,000 rpm. Offered only in 1980 and 1981, it illustrates how far V8s had shrunk by this point – a “V8” that made barely more power than the base V6.
4.1 L (252 cu in) V6 – optional. Buick’s new larger V6 for 1981, offering more torque than the 231 without the fuel penalty of a V8.
350 cu in (5.7 L) Oldsmobile diesel V8 – optional. Available on the Regal from 1981, rated at 105 hp in passenger-car tune. It promised strong economy but earned a poor durability reputation, and surviving diesel cars are frequently found with a gasoline engine swapped in.
The Turbocharged V6
The turbocharged 3.8-liter V6 is the historically important engine here, because it is the thread that runs from the 1981 Sport Coupe to the Grand National, the T-Type, and eventually the GNX. At 170 hp and 275 lb-ft, it gave the Regal genuinely strong performance for 1981 – a year when a 350 V8 in most cars made less than 160 hp and emissions controls had blunted nearly everything on the market.
The character of the engine was distinctive: modest power until the turbo came on boost, then a strong surge of torque. It was not a peaky, high-revving design but a torque-rich one, which suited the Regal’s relaxed chassis well. Buick’s commitment to turbocharging at a moment when the rest of the industry was simply detuning V8s is precisely why the division ended the decade with the fastest American production car.
Prospective buyers should know that turbocharger failures are common on neglected examples of any early-1980s turbo car, and maintenance history matters a great deal.
Transmissions and Drivetrain
All 1981 Regals were rear-wheel drive with automatic transmissions – no manual gearbox was offered, a deliberate choice reflecting the car’s personal luxury positioning rather than any sporting pretension.
Engines were backed by a Turbo Hydra-Matic automatic with a lock-up torque converter clutch, a fuel-economy measure that locked the converter at cruising speed to eliminate slip. The new-for-1981 four-speed overdrive automatic was becoming available across GM’s lineup and represented a meaningful improvement in highway economy over the three-speed units.
A significant behind-the-scenes change for 1981 was GM’s adoption of Computer Command Control, an electronic engine management system using an oxygen sensor to continuously adjust the air-fuel mixture. It improved emissions compliance and driveability but added electronic complexity that early-1980s mechanics – and some owners today – find frustrating.
Chassis, Suspension, and Brakes
The Regal used a conventional rear-wheel-drive layout with a separate body and frame, an independent front suspension with coil springs, and a coil-sprung live rear axle. The 108.1-inch wheelbase and roughly 200.6-inch overall length made it a comfortably sized intermediate.
Suspension tuning was soft, in keeping with Buick’s traditional ride-first philosophy. This was the car’s dynamic weakness from an enthusiast’s perspective: even the Sport Coupe was held back by compliant springing, the absence of a manual transmission, and modest wheel and tire sizes. The Regal was aimed squarely at the intermediate personal luxury market rather than the sports segment, and its chassis reflects that.
Brakes were front discs with rear drums and power assist – standard practice for an American intermediate of the period, adequate for normal use and unremarkable under harder driving.
Interior and Equipment
Inside, the Regal offered the plush, isolated cabin that defined Buick. Bench seating with a folding center armrest was standard, with a 60/40 split bench optional, upholstered in cloth, velour, or vinyl depending on trim. Woodgrain accents appeared on the dashboard and door panels, and the Limited added richer materials throughout.
Typical options included air conditioning, power windows and locks, a tilt steering wheel, cruise control, an AM/FM stereo with optional cassette or 8-track, a vinyl or landau roof, wire wheel covers or aluminum wheels, and the Gran Touring suspension package for buyers who wanted somewhat firmer handling.
The 1981 Indy 500 Pace Car
The Regal’s promotional year extended beyond NASCAR. It was chosen as the official pace car for the Indianapolis 500 on May 24, 1981, and Buick worked with American Sunroof Company – the same firm that would later help develop the GNX – to build two pace cars, a primary and a backup.
These were not ordinary Regals. They used heavily modified naturally aspirated 4.1-liter Buick V6 engines, custom convertible roof sections, and a distinctive silver and maroon paint scheme with orange decals. The actual ASC-built pace cars were not sold to the public, but the program is a notable footnote in the Regal’s performance story and a direct precursor to the Grand National program that followed a year later.
Collectibility Today
The 1981 Regal occupies an interesting position. It is not the Grand National – that arrived in 1982 – but it is the year the Grand National’s body and reputation were created, which gives it genuine historical standing among Buick enthusiasts.
Turbocharged Sport Coupes are the ones to seek. They carry the performance lineage, the desirable powertrain, and a real connection to the NASCAR championship season, and they command a clear premium over base cars. Naturally aspirated Regals and Limiteds are far more affordable and make comfortable, easy-to-own cruisers with straightforward mechanicals and reasonable parts availability thanks to the G-body’s enormous aftermarket.
Points to check: rust in the usual G-body areas (rear window channel, trunk floor, lower fenders), the condition and service history of any turbocharger, the health of the Computer Command Control system, and – on diesel cars – whether the original engine survives or has been replaced. As the foundation of the Grand National era, clean 1981 Regals have been appreciating steadily.
Key Features Summary
- Layout: Front-engine, rear-wheel drive (FR)
- Wheelbase: 108.1 inches; overall length approx. 200.6 inches
- Body Style: 2-door coupe only
- Major Change: Aerodynamic facelift with sloping hood and nose, engineered for NASCAR
- Racing: Petty won the 1981 Daytona 500; Buick took the NASCAR manufacturers’ title in 1981 and 1982
- Trims: Regal ($7,550), Limited ($8,025), Sport Coupe ($8,530)
- Standard Engine: 231 cu in (3.8 L) V6 – 110 hp, 190 lb-ft
- Performance Engine: Turbocharged 3.8 L V6 – 170 hp, 275 lb-ft
- Other Engines: 265 V8 (119 hp), 4.1 L V6, 350 diesel V8 (105 hp)
- Transmission: Automatic only, with lock-up torque converter
- New for 1981: Computer Command Control engine management
- Also in 1981: Indianapolis 500 pace car, built by ASC with a 4.1 L V6
- Production: approx. 240,200 – Buick’s volume leader
- Legacy: This body became the Grand National and, ultimately, the GNX
The 1981 Buick Regal Specs
| BODY | |
| Manufacturer | Buick (General Motors) |
| Body Style | 2-door coupe |
| Generation | Second generation (1978–1987) |
| Platform | GM rear-wheel-drive intermediate (A/G-body) |
| Chassis | Separate body and frame |
| Trim Levels | Regal; Regal Limited; Regal Sport Coupe |
| Key 1981 Change | Aerodynamic facelift – sloping hood and nose |
| DIMENSIONS | |
| Wheelbase | 108.1 inches (2,746 mm) |
| Overall Length | approx. 200.6 inches (5,095 mm) |
| Seating Capacity | 5–6 (bench seating) |
| ENGINE – STANDARD (231 V6) | |
| Engine Type | OHV V6, cast-iron block and heads |
| Displacement | 231 cu in (3,791 cc / 3.8 L) |
| Compression Ratio | 8.0:1 |
| Horsepower | 110 hp @ 3,800 RPM |
| Torque | 190 lb·ft @ 1,600 RPM |
| Carburetor | Rochester 2-barrel |
| Main Bearings | 4 |
| Valve Lifters | Hydraulic |
| ENGINE – TURBOCHARGED (231 Turbo V6) | |
| Displacement | 231 cu in (3.8 L), turbocharged |
| Horsepower | 170 hp |
| Torque | 275 lb·ft |
| Application | Standard in Regal Sport Coupe; optional elsewhere |
| Legacy | Basis of the 1982 Grand National and later T-Type/GNX |
| ENGINE – OPTIONAL (265 V8) | |
| Displacement | 265 cu in (4.3 L) – Pontiac-built |
| Compression Ratio | 8.0:1 |
| Horsepower | 119 hp @ 4,000 RPM |
| Torque | 203 lb·ft @ 2,000 RPM |
| Main Bearings | 5 |
| Availability | 1980 and 1981 only |
| ENGINE – OTHER OPTIONS | |
| 4.1 L V6 (252 cu in) | Buick’s new larger V6 for 1981 |
| 350 cu in (5.7 L) Diesel V8 | Oldsmobile-built, 105 hp @ 3,200 RPM, 205 lb·ft @ 1,600 RPM |
| TRANSMISSION AND DRIVETRAIN | |
| Transmission | Turbo Hydra-Matic automatic with lock-up converter clutch |
| Manual Transmission | Not available |
| Drive Layout | Rear-wheel drive |
| Engine Management | Computer Command Control (new for 1981) |
| SUSPENSION, STEERING, BRAKES | |
| Front Suspension | Independent, coil springs |
| Rear Suspension | Live axle, coil springs |
| Suspension Tuning | Soft, ride-oriented; Gran Touring package optional |
| Steering | Power-assisted recirculating ball |
| Brakes | Front discs, rear drums, power assist |
| PRICING (1981) | |
| Regal Coupe | $7,550 |
| Regal Limited | $8,025 |
| Regal Sport Coupe (turbo) | $8,530 |
| RACING AND PROMOTION (1981) | |
| Daytona 500 | Won by Richard Petty in a Regal |
| Winston Cup Championship | Darrell Waltrip |
| Manufacturers’ Title | Buick – 1981 and 1982 |
| Indianapolis 500 Pace Car | May 24, 1981 – two ASC-built cars with modified 4.1 L V6 |
| EXTERIOR COLORS (1981 Buick, selected) | |
| White (11), Silver (15), Black (19), Medium Blue (21), Dark Blue (29), Tan (63), Light Sandstone (63), Medium Sandstone (68), Dark Sandstone (69), Red Firemist (74), Dark Redwood (77) | |
| OPTIONAL EQUIPMENT (SELECTED) | |
| Turbocharged 3.8 L V6 | Opt. (standard on Sport Coupe) |
| Air Conditioning | Opt. |
| Power Windows and Door Locks | Opt. |
| Tilt Steering Wheel | Opt. |
| Cruise Control | Opt. |
| AM/FM Stereo with Cassette or 8-Track | Opt. |
| Gran Touring Suspension | Opt. |
| Vinyl or Landau Roof | Opt. |
| Aluminum Wheels / Wire Wheel Covers | Opt. |
| 60/40 Split Bench Seat | Opt. |
1981 Buick Regal – Frequently Asked Questions
Why was the 1981 Buick Regal restyled?
For racing. NASCAR Winston Cup cars were built from production body panels, so the only way to get a more aerodynamic race car was to build a more aerodynamic road car. Buick gave the 1981 Regal a sloping hood and nose specifically to reduce drag on superspeedways. The gamble paid off immediately – Regals dominated the 1981 and 1982 seasons and won the manufacturers’ title both years.
How much horsepower does a 1981 Buick Regal have?
The standard 231 cu in (3.8 L) V6 produced 110 hp and 190 lb-ft of torque. The turbocharged version of the same engine made 170 hp and 275 lb-ft. The optional Pontiac-built 265 cu in V8 made just 119 hp, and the Oldsmobile 350 diesel V8 produced 105 hp. Emissions regulations had blunted output across the industry by 1981, which is why a turbo V6 outperformed the V8.
Is the 1981 Regal the same as a Grand National?
No, but it is the car that made the Grand National possible. The Grand National arrived for 1982, named after the NASCAR series Buick had just dominated. The 1981 Regal introduced the aerodynamic body and the turbocharged 3.8 L V6 that the Grand National – and later the T-Type and the 1987 GNX – would build on. A 1981 turbo Sport Coupe is effectively the Grand National’s direct predecessor.
Did Buick win the 1981 Daytona 500?
Yes. Richard Petty won the 1981 Daytona 500 driving a Buick Regal. Regals went on to take the majority of races in both 1981 and 1982, Darrell Waltrip won the 1981 Winston Cup championship, and Buick claimed the NASCAR manufacturers’ title in both seasons – remarkable results for a division whose previous NASCAR victory dated to 1956.
Was a manual transmission available in the 1981 Regal?
No. All 1981 Regals used a Turbo Hydra-Matic automatic with a lock-up torque converter clutch. The absence of a manual gearbox, combined with soft suspension and modest wheels and tires, reflected the Regal’s positioning as an intermediate personal luxury coupe rather than a sports car – even in Sport Coupe form.
What was the 1981 Regal Indy 500 pace car?
The Regal was chosen to pace the Indianapolis 500 on May 24, 1981. Buick worked with American Sunroof Company to build two cars – a primary and a backup – using heavily modified naturally aspirated 4.1-liter V6 engines, custom convertible roof sections, and a silver and maroon paint scheme with orange decals. The ASC-built pace cars themselves were not sold to the public.
Which 1981 Regal is most collectible?
The turbocharged Sport Coupe. It carries the performance powertrain that leads directly to the Grand National and GNX, and it connects to Buick’s championship season. Base coupes and Limiteds are far more affordable and make comfortable cruisers with excellent aftermarket support. Check for rust around the rear window channel and trunk floor, verify turbocharger condition and service history, and on diesel cars establish whether the original engine survives.
What is Computer Command Control?
It is the electronic engine management system GM introduced across its lineup for 1981. Using an oxygen sensor in the exhaust, it continuously adjusted the air-fuel mixture to meet tightening emissions standards while maintaining driveability. It was a significant technical step forward, but it added electronic complexity that can complicate diagnosis on cars of this era – worth understanding before buying.
