In 1987, the Buick Regal Grand National assembly line stopped. 37 years later, the car is back with 1,248 horsepower.
There was a lot of news to come at this year's SEMA Show in the US. One of the most interesting was the Buick Grand National, nicknamed the Invadr.
At the 2024 SEMA show, two converted corvettes will be presented: a Chevrolet K5 Blazer named Tuka and a Buick Grand National named Invadr.
Invadr is based on Buick's iconic model from the 1980s. But beneath the classic exterior hides a 3.8-liter V6 engine with two turbochargers. Built by Duttweiler Performance, the engine produces 1,248 horsepower and 1,356 Nm of torque thanks to two Precision 62 turbochargers.
Ringbrothers, who are behind the conversion, state that the engine can handle a pressure of up to 3.44 bar. Which is enough for 2,000 horsepower
All horsepower is sent to the rear wheels via a Tremec T-56 six-speed manual transmission and a custom-built carbon fiber propshaft.
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Speaking of carbon fiber, that's what the brakes are made of. The discs are taken directly from a Corvette ZR1. And then there are the shock absorbers. They are adjustable and supplied by Penske Motorsport. A nitrogen-based air system for quick tire changes can raise the car, just as we see it when Penske choirs, among other things. Le Mans.
The 345 millimeter wide Michelin Cup 2 tires on the rear wheels ensure optimal road grip. Or as optimal as it can be now, when there is 1,248 horsepower to do well enough with. After all, there are limits to how much the laws of physics can be bent.
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