The 2011 Smart ForTwo earns EPA ratings of 33/41 mpg city/highway from its only engine/transmission combination, a 1.3-liter three-cylinder with a five-speed automatic, for both the coupe and convertible. The Fiat 500 coupe gets 30/38 mpg with its 1.4-liter four-cylinder and standard five-speed manual transmission and 27/34 mpg with the optional six-speed automatic. The 500 convertible’s city rating is the same, but the highway mileage is 32 mpg.
Premium gas is recommended for best performance in both cars.
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