The new 3 Series shows off design refinement, with headlight casings touching the traditional kidney-shaped grille openings. The hood comes down to meet the top of the grille, presenting a sharper appearance than the outgoing model. Deep contour lines score the sides. BMW also increased the size of the car, adding 3.6 inches to overall length and 2 inches to the wheelbase. Track increased by 1.5 inches in front and 1.9 inches at the rear wheels.