Sales of BMW Group have increased by 81% over the last decade (ending in 2012), or 6.1% on average per year. Most of the growth came from the increased production (from 0.9 mil to more than 1.5 mil cars in 2012) as average price per car remained roughly the same (at around EUR 40-42,000). Company's profits have increased faster than that, however, at nearly 10% a year.
With the exception of the years 2008-2009, the Company's ROE has stayed in the range of 15-20% in the last decade. An impressive achievement for a car producer, isn't it?