This model sets itself apart with Space-efficient packaging, easy parking and maneuverability, rakish exterior, strong performance, luxurious interior, and extensive option possibilities Best selection of Certified Pre-Owned Mercedes. Even with the turbocharged 4-cylinder in its sDrive28i guise, the X1 can accelerate to 60 mph in just 6.2 seconds. The X1 utilizes available space better than other small crossover vehicles, thanks to a low cargo floor and flat-folding seats