The Corvette does have a very efficient V8 engine if its not driven too agressively. Just don't expect those numbers if you have fun with your 'Vette. The LS1's mileage drops as fun increases! :yesnodtennis4789 said:A 1999 Corvette gets 18 mpg & 28 mpg with a manual transmission. One of these can be picked up for in between $19-24k. Seems like a Solstice should be able to get better mileage since a Corvette has a 5.7 liter 8 cylinder engine.