THE BREAKDOWN Custom twin-turbo 6.2-liter V8, Corvette-based platform, and 1,560 horsepower. The Rezvani Beast X doesn't just tweak the Corvette formula; it essentially tears it up and rewrites it with four-digit horsepower and an extremely limited production run. Rezvani Motors has unveiled its new American-built hypercar, powered by a twin-turbocharged 6.2-liter V8 that produces a claimed 1,560 horsepower. Rezvani positions the Beast X as a US-built hypercar, but underneath all that aggressive bodywork is the Chevrolet Corvette. The Beast X packs a custom-built, twin-turbocharged 6.2-liter V8 with fully forged internals, producing a claimed 1,560 horsepower.