At Kirban Performance, we’ve spent decades helping enthusiasts and collectors of Buick turbocharged G-body cars get the most out of their vehicles. One of the most common topics we’re asked about is the difference between the Turbo T, T-Type, and the legendary Grand National. While these models all share the same Buick Turbo powertrain, they’re not identical, and for collectors and restorers, those differences matter.
Let’s break down what makes each version of the turbo Regal unique, including trim, performance, weight, wheels, and value implications.
The Buick Grand National - Dark, Bold, and Legendary
Introduced in 1982 and produced through 1987, the Buick Grand National quickly became one of the most iconic muscle cars of the ‘80s. Its blacked-out appearance, stealthy attitude, and legendary turbocharged 3.8L V6 made it stand out not only in GM’s lineup but across the entire American car market.
Key traits of the Grand National (especially the 1986-87 models):
- Factory black-only exterior paint
- Blacked-out trim and bumpers
- Unique badging and interior embroidery
- Turbocharged/intercooled 3.8L V6 engine
- 15" black and silver aluminum wheels
The Grand National wasn’t just fast, it was fierce-looking. However, if you dive deeper into the Turbo Regal lineup, you’ll find some surprises that even outperform the GN in certain areas.
What is a Turbo T?
The Turbo T was a trim offered in 1987, combining the performance of the Grand National with a lighter, more subtle appearance. While many assume “Turbo T” is just a nickname, it actually refers to Regal T-package cars (option Y56) equipped with the LC2 turbo engine and WE2 or WE4 trim options.
Turbo T highlights:
- Optional colors (not limited to black)
- Chrome bumpers and trim in many versions
- Lighter curb weight than the Grand National
- “T” emblems on fenders
Available leather-wrapped steering wheels and luxury upgrades
Interestingly, the Turbo T Grand National confusion arises because the Turbo T shares the powertrain and many options with the GN, but wears a more conservative appearance. For collectors, these models are sometimes even more desirable due to their lower production numbers and reduced weight.
What About the T-Type?
The T-Type badge existed earlier in the Regal line and referred to a sporty trim level. However, not all T-Types were turbocharged, and not all were made in 1987. In fact, by 1987, Buick dropped the “T-Type” badging in favor of the “T” designation with Y56 trim.
So while 1984–86 models may be labeled Regal T-Type, the proper terminology for a 1987 turbo Regal that’s not a GN or GNX is Turbo T.
Lightweight Champion: The WE4 Turbo T
One of the rarest and most performance-oriented Turbo Regals is the WE4 optioned Turbo T, known as the “Lightweight Grand National.” Buick produced only 1,547 units, and they came with:
- Black paint
- Chrome trim (bumpers, grille)
- Lighter aluminum wheels (not GN wheels)
- Minimalist features for weight savings
The WE4 cars are faster due to reduced weight and have become highly collectible in recent years.
Buick Regal on Rims: Styling the Difference
One of the easiest ways to personalize your Buick Regal on rims is to play with wheel options that complement its body trim. Grand Nationals look aggressive with black mesh or GNX-style wheels, while chrome-trim Turbo Ts pair beautifully with polished aluminum or wire wheels.
Whether you're upgrading for a restomod look or trying to maintain factory spec, Kirban Performance offers accessories, brake kits, and suspension components to ensure your Buick Regal rims fit correctly and enhance both form and function.
Value & Restoration Considerations
When restoring any BuickTurbo vehicle, understanding the original trim and rarity is key. Grand Nationals are widely recognized and hold steady value. However, clean Turbo T and WE4 cars often sell for just as much, or more, due to their unique build characteristics and scarcity.
Final Thoughts from Kirban Performance!
Whether you're restoring a Grand National, building out a show-ready Turbo T Grand National, or simply putting your Buick Regal on rims for cruise night, Kirban Performance has the hard-to-find parts, detailed guides, and restoration knowledge you need.
Explore our full collection of BuickTurbo accessories, including turbo shields, brake boosters, wheel accessories, and GNX turbo heat shields, at Kirban Performance.