More cubes, more thirst: the new LS6 makes the Corvette work for its power
The 2027 Corvette Stingray and Grand Sport drink a bit more fuel than the 2026 LT2 car, but the new naturally aspirated LS6 keeps things reasonable.
Chevrolet Corvette 2027 has received its first official fuel economy figures with the new naturally aspirated LS6 V8. The numbers are slightly worse, but there is no disaster: the larger 6.7-liter engine has nearly matched the efficiency of the previous 6.2-liter LT2.
According to Natural Resources Canada, the new Corvette Stingray and Grand Sport consume 15.7 L/100 km in the city, 9.4 L/100 km on the highway and 12.9 L/100 km in the combined cycle. The 2026 LT2 model returned 15.1, 9.4 and 12.5 L/100 km respectively. The headline here is not the numbers themselves but the reason behind them. The 2027 Corvette Stingray switches to the new 6.7-liter LS6, which makes 535 hp and 637 Nm of torque. The old LT2 produced up to 495 hp and 637 Nm in Performance Exhaust trim. Chevrolet has added displacement and power without turning the base Corvette into a fuel hog.
For a sports car buyer this is a fair compromise. City consumption will rise, especially with short trips and frequent full-throttle pulls. On the highway the Corvette remains surprisingly civilized thanks to aerodynamics, long gearing and the ability to cruise calmly when the driver isn’t asking the V8 to put on a show with every acceleration.
Next to the Porsche 911 Carrera the Corvette still looks less refined, but more powerful and more emotional for the money. Alongside the Z06, ZR1 and hybrid E-Ray, the base Stingray remains the clearest pick: a large naturally aspirated V8, rear-wheel drive and fuel consumption that doesn’t look absurd for a car in this class.
The slightly worse rating is unlikely to scare off the faithful. What matters more is this: Chevrolet hasn’t yet sacrificed the Corvette to turbos or a full hybrid transition. The new LS6 simply reminds us that the classic recipe with a big V8 is still alive — but free power doesn’t exist.