With General Motors dropping a teaser image of the new car, speculation abounds as to what exactly will power the next-generation Z06

The Z06 will be returning to the Corvette lineup as of the Detroit Auto Show in January. It was previously speculated the up-tuned sportscar would get a new Z07 moniker. But, with an official press release to the contrary from General Motors, the focus has changed to speculation on what will power the new model.

What we do know is the next-generation Z06 will wear some rather sticky rubber – Michelin Pilot Sport Cup tires – wrapped around some significantly trimmed down wheels. The performance model will also see some increased carbon fibre usage for trim details such as side skirts and fender flares.

Under the hood, it’s all guesses at this point. The current Z06 uses a 7.0L V8 (LS7) that also powers the 2014 Camaro Z/28. This engine, in all likelihood, should continue in the new Z06.

A supercharged 6.2L V8 engine has been spied in the past and might see use in the Z06. Though, more likely, the force-fed mill will be used for the next ZR1 or equivalent model.

Another option being speculated is a twin-turbo 4.5L engine, conceivably giving the Z06 a significantly lower curb weight than the base Stingray and better fuel economy and torque than the current Z06. GM’s Mark Reuss has also hinted at wanting a hybrid Corvette in the future, though to introduce that on the C7 Z06 doesn’t seem plausible.

The next Corvette in the lineup – the Stingray Convertible – is set to go on sale this month.

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