Chevrolet’s upcoming mid-engine Corvette might just share some DNA with the Porsche 918 Spyder.
Ever since the C8 Corvette was announced with a dual-clutch transmission, we always thought it would be the new 7-speed dual-clutch from Tremec. After all, Tremec is used in a lot of GM vehicles, and they produced the transmission around the same time as the mid-engine Corvette’s development really started rolling, so it seemed like just putting two-and-two together.
Now we’re being told that might not be the case. According to internal GM documents uncovered by Jalopnik, the C8 Corvette is actually getting an 8-speed dual-clutch and not a 7-speed.
There aren’t that many 8-speed dual-clutches in the world, and Road & Track surmises that this could be the new 8DT series of transmissions from ZF. The 8DT has begun rolling out in various Volkswagen applications, such as the Porsche Panamera and Bentley Continental, and it could easily handle the rumored power of the base-model C8 Corvette.
But what’s more interesting is the lineage of the ZF transmission. The 8DT was made to replace the older 7DT model which was used in the previous Panamera, Porsche 911, and the Porsche 918 Spyder plug-in hybrid supercar. Road & Track also speculates that the the 8DT’s configuration in leaked CAD drawings of the Corvette looks a lot like the same transmission and engine configuration in the Porsche 918.
The 8DT is an evolution of the 7DT with an extra gear, so it’s not a stretch say that the Corvette’s transmission shares lineage with a Porsche supercar.
It’s also an interesting point that the 8DT makes it easy for a car to go hybrid. A space in the housing allows a small electric motor to be installed and easily convert a car into a hybrid or plug-in hybrid. A hybrid Corvette is rumored to be a future option, which the 8DT would allow for.
The Jalopnik docs showed quite a bit of information on the upcoming mid-engine Corvette, including its aluminum wheels, magnetic selective ride control suspension, and interior color options. You should check ‘em out if you get the chance.
Unfortunately, it will still be some time before GM provides any confirmation on what’s going on with the C8. The earliest reveal window is rumored to be late August, with production beginning in December.