The 2012 1 Series is given little more than minor tweaks. The most notable update in 2011 was under the hood of the 135i, when it received a more responsive version of the tried-and-true 3.0-liter in-line six. At the same time, the 135i received a 7-speed Double Clutch automatic transmission (optional), while the 128i continued with an optional 6-speed Steptronic automatic. The most significant change on the 2012 BMW 1 Series landscape is the discontinuation of the 1 Series M Coupe. Its limited production run is marked "Sold."