Autoblog and Yahoo may earn commission from links in this article.The EPA has official fuel economy figures for the 2027 Corvette Stingray's new 6.7-litre LS6 V8, and the numbers are about as painless as a power upgrade gets. The EPA's comparison tool puts the annual fuel cost difference between last year's 495-hp LT2-powered Stingray and the new 535-hp LS6 car at around $250 over a full year of driving. That's roughly the price of a couple of tanks of premium. For 40 more horsepower, 50 more pound-feet of torque, and quicker straight-line performance, most buyers will consider that a happy trade-off.ChevroletThe Numbers, Because Context Is EverythingThe 2027 Corvette Stingray's LS6 engine returns 15 MPG in the city and 25 MPG on the highway, for a combined figure of 18 MPG. The outgoing LT2 managed 16 city, 25 highway, and 19 combined. So the highway number is completely unchanged. The only hit is a single MPG in city driving.ChevroletThe bigger number to pay attention to is the sticker price. The 2026 Stingray started at $72,495, including destination fees. The 2027 model, with its new engine and revised options structure, now begins at $73,495. A $1,000 increase for a car that now makes 40 more horsepower from a larger, more sophisticated engine with dual injection and a higher 13.0:1 compression ratio. Even accounting for that $250 annual fuel premium, the value math still reads very much in the new Corvette's favour.GM's Engineering Actually Did Something Smart HereThe LS6 displaces 6.7 liters, breathes through a larger 95mm throttle body, and uses cylinder deactivation alongside dual port and direct injection to keep the efficiency numbers from going off a cliff. It's a bigger, more powerful engine that somehow doesn't cost you much more at the pump. The result is one of those rare cases where you get a genuinely better car without necessarily paying the price for it.AdvertisementAdvertisementThis story was originally published by Autoblog on Jun 19, 2026, where it first appeared in the News section. Add Autoblog as a Preferred Source by clicking here.