New fuel econonmy numbers are now available for the 2014 Corvette Stingray. Specifically, those C7s with the 6-speed automatic transmission have now been rated by the EPA as getting 16 mpg city, 28 mpg highway and 20 mpg combined.
Compared to the 2014 Corvette Stingray with the 7-speed manual transmission which was EPA rated at 17/29 mpg, the automatic gets 1 mpg less than the manual Vette in each category. The good news is that automatic’s rating is up from the 2013 Corvette’s 15/25 mpg rating.
It doesn’t appear that the Corvette was tested with the Driver Select Mode set to ECO, the Corvette Stingray’s fuel economy mode that deactivates four of the eight cylinders under light driving conditions. The manual Corvette got a 30 mpg when tested in ECO mode so is it safe to say that the automatic in ECO mode should be around 29 mpg considering the 1 mpg difference between the two transmissions?
The Corvette Stingrays come equipped with the 7-speed manual transmission in their base form. Customers can upgrade to the RPO MYC 6-speed automatic transmission for $1,350.
For those that prefer the automatic to the manual transmission, the future looks bright. GM does have an 8-speed automatic under development that is expected to be ready for production in 2016. However, there was also the recent story that GM has filed patents for a 7-speed dual clutch transmission. While we don’t have any details if a DCT is actually going to be produced, the Corvette may be one of the first GM vehicles to get the new technology.