Y-Body incorporates a rear-mounted transmission (1997-present) instead of a transmission mounted directly to the engine. Power is transferred to the transmission via a torque tube. The transmission is offered in both 4/5/6/8-speed automatic versions and 6 and 7-speed manual versions. As of 2015 the Y platform is considered as the sole perimeter frame automobile in production (the perimeter frame has an integrated endoskeleton which serves as a safety cage). The front-engine C7 Corvette (2014-2019) used the Y1XX platform. The mid-engine C8 Corvette (2020-present) uses the Y2XX platform. GM's Kappa platform was inspired by the Y-body. The distinctive feature of both platforms is the backbone central-tunnel design. External links Y