Technically speaking, manual Chevy Corvette C8 is possible

This would allow the clutch and the gearshift to be connected electronically to the transmission.

Chevrolet Corvette

Chief Engineer Tadge Jüechter made it clear that the C8 ‘Vette will not receive a manual gearbox.

It was explicitly called “a dying enterprise” by him.
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Motor Trend
We have created a way that drivers can row their own gears, without having to use a different transmission.

Motor Trend, based on GM patent filings suggests that Chevy could combine its technology to create an electronic-actuated manual for the Corvette. Although there would be a shifter, it wouldn’t have any physical connection to the transmission. Instead, an electronic clutch would be available with haptic feedback that will tell drivers where the pedal’s bite point is.

The 2020 Corvette has no manual gearbox

It would still be possible to use the existing 8-speed dual-clutch transmission. The driver would push the clutch to shift cogs and then move the shifter when it was time. The transmission would be notified by electronic signals that it is time to change gears.

Although all this technology is available, it seems like a compromise that the C8 receives a manual gearbox. A traditional clutch and gearshift system would be preferred by buyers who are looking for one. These people might not be interested in an electronic solution.

The C8 Corvette’s cabin is small enough to accommodate the manual gearshift. The center console only has a small amount of space for the buttons controlling the current 8-speed automatic. Although the only place to put the shifter is in an existing storage area, it might not be a good location for drivers.

Customers can look forward to more power, even though a manual gearbox is unlikely for the C8 Corvette. Rumours suggest that the C8 Corvette will get a twin-turbo V8 and possibly a hybrid version.