On the 2010 Cooper MINI has optimized the ECU which ups the engine 2 hp total to 120 hp. On the 2010 MCS MINI added a fully variable valve control that optimizes the engine’s responses reducing fuel consumption and emissions and ups the engine 7 hp to 179 hp. The changes won't reach the US until September to coincide with the US MINI refresh schedule, although, the changes are available with March production for non-US consumption.
[Source: MotoringFile]