The EPA posted that owners of the 2013 X3 xDrive28i can expect as much as 21/28 mpg city/highway, and 24 mpg combined. Given the X3 xDrive28i’s 241-hp, those aren’t bad numbers. It’s even better when you remember the outgoing six-cylinder X3 which got 19-mpg city, 25-mpg highway, and a combined 21-mpg rating.
The turbocharged six-cylinder xDrive35i will see similar figures however, with 19-mpg city, 26-mpg highway, 21-mpg combined.
For now, those numbers net the X3 xDrive28i the most efficient, all-wheel drive luxury crossover – that isn’t a hybrid. That might change when Mercedes-Benz announced fuel consumption figures for the 2013 GLK, which we saw last week at the New York Auto Show.