Not true. Superchargers use a lot more energy (power) then a turbo. That is one reason Diesels use turbochargers when developing a system for an appliation the turbo will win out. Genereally cheaper and more effective. Complexity might increase with a turbo, however you can gain more power without the power loss to drive the supercharger. GM and Ford both packaged a superchargers in their new speed beasts, but I will bet good money if turbos could have been stuff in the new ZR1 they would have.
