It will feature the CTS-V's LSA powerplant for its engine. They're both powered by port fuel-injected, Eaton supercharged, aluminum-block V8s. At 4.0 seconds (3.7 seconds with rollout) the Shelby, again, was quicker. At $56,295 (including the mandatory gas-guzzler tax) the ZL1's cost of entry is similar.