There are multiple factors which may affect a cars fuel economy. Engine size, gear ratios and weight all have an impact on efficiency, however one influence that may often go overlooked is aerodynamics. How well a vehicle slices through the air is crucial to fuel consumption, so which of today’s economy cars are the most slippery? Car and Driver’s technical director Don Sherman took a field trip out to the wind tunnel to find out.
When talking about fuel economy, you almost have to bring up the Chevrolet Volt extended-range EV. C&D brought along a couple of the Chevy’s competitors too, the Nissan Leaf and Toyota Prius, in addition to the Tesla Model S and Mercedes-Benz CLA.
Your’re probably thinking the three EV’s in this test, the Model S, Volt and Leaf, will run away with the victory, but you may surprised. The Prius has been in production for some time now, so you can bet that Toyota has the car’s aerodynamics sorted out by now. Even though it’s the only all-gasoline model in the test, ze clever Germans behind the CLA are not to be underestimated either. So who will come out the winner? Check out the video below to find out.