Thanks to David Wesel, we see that the Corvette Team has been continuing to test 2018 Corvette ZR1 prototypes in Marietta, Ohio, including a convertible!
Along with the convertible, we see two different types of rear wings as well as a 707-hp Dodge Challenger Hellcat and a 575-hp Jaguar F-Type SVR for company.
The Corvette ZR1 prototypes were caught leaving a gas station during road testing in Ohio wearing light camouflage, and two different types of rear wings. Accompanying the prototypes is a 707-hp Dodge Challenger Hellcat and a 575-hp Jaguar F-Type SVR, both supercharged high performance vehicles.
Although the front-ends are heavily covered, you can easily see that there are serious grill inserts underneath that could be used for either additional brake cooling, or powertrain cooling.
What do they sound like? Well, they actually sound a lot like the current Z06.