The ZR1’s turbos are the largest ever installed on a production passenger car, according to GM. The inertia of such large turbos is a recipe for turbo lag—that’s the delay between the time when a driver floors the gas pedal and the engine’s turbo reaches full boost to provide maximum power.

A “hypercar” is considered a step above a “supercar,” based on performance aspects of a vehicle such as speed, acceleration and 0-60 mph times.