Usually General Motors issues a press release encompassing the EPA fuel economy ratings of its vehicles, but not in the case of the Chevrolet Sonic RS. Regardless, the EPA found that the Sonic RS is good for 27 miles per gallon in the city, and 34 on the highway when equipped with a manual transmission for a combined 30 mpg rating. The automatic version is docked a few points with a 25 mpg city, 33 highway, and 28 combined mpg rating.
Compared to the 40 mpg highway mark found in the Sonic Turbo — which features the same 1.4L Ecotec turbocharged engine but with taller gearing — the fuel economy borders on disappointing. But perhaps with its improved suspension, acceleration, and brakes, drivers of the Sonic RS may forget all about fuel economy — if they can afford it. But this is a verdict that has yet to be reached for us.
We wonder what kind of fuel economy numbers the Sonic would get with a diesel variant. And if it’s another level of performance consumers are looking for, a high-performance Sonic may yet be on the horizon.