BMW has announced several changes to its 1 Series lineup to "accentuate efficiency and premium quality" on the 2012 BMW 1 Series. 

The upgrades include BMW's Air Curtain air-flow management we've seen on the 1 Series M Coupe, new accents to the headlights, horizontal LED accents to the taillights, and new switches and controls on the interior. The greenhouse has been moved back and for the 135, an M Sport body kit is standard.

The 135i will still have the 300 horsepower / 300 torqe u3.0-liter single-turbo N55 while the 128 will stick with a 3.0-liter NA unit making 230 horsepower and 200 pound-feet of torque. Transmissions are a six-speed manual and a seven-speed DCT.