1. I cannot fit into a Corvette. Not no way, not no how. But they do get pretty decent highway mileage. I've spoken to a few owners that see 24mpg when cruising.
2. Yeah, the V10 can be thirsty. But I've seen 18mpg out of mine (again, while cruising). I've also seen instead of Miles per Gallon.....Gallons per Mile.