Ringbrothers' 1987 Buick Grand National Is a V-6 Muscle Car Missile

• Ringbrothers just debuted Invadr, a 1987 Buick Grand National Restomod.
• Its twin-turbo V-6 makes 1,246 horsepower, about 1,001 more than the original.
• Invadr rides on a custom chassis and gets all sorts of carbon-fiber trim.

Wisconsin-based Ringbrothers always brings incredible builds to the SEMA show, and this year, it's got a different sort of muscle car among its debuts. This is Invadr, a 1987 Buick Regal Grand National sporting a 1,246-horsepower 3.8-liter twin-turbo V-6, a custom chassis, and cosmetic upgrades that take enhance the original's subtle good looks. Yes, that's 1,001 more hp than the 1987 original.