The Corvette rumor mill in Detroit is spinning at high RPMs this summer as speculation about the eighth generation -- due in 2019 -- picks up speed. General Motors' former product czar, Bob Lutz, is the latest to proffer an opinion on the mechanical makeup of America's long-running sports car.
Lutz told The Detroit News this month that the long gestation time of the next Chevrolet Corvette -- C8 in GM parlance -- could portend two things: a plug-in hybrid version, and a Cadillac sports car to replace the XLR.
GM has committed funds for a retooling of Corvette's Kentucky plant.
Lutz told The News that before GM's 2009 financial collapse, he had approval for a new-version Cadillac sports car.
As for the hybrid version, Lutz told the paper a Corvette hybrid could enable the sports car to attain an EPA rating as high as 50 mpg city and would give it all-wheel-drive capability.
GM, of course, is not commenting on its future plans for the Corvette.