I keep hearing that the reason VW cheated was because U.S. emissions requirements for Diesel passenger vehicles are absurdly strict (compared to Euro regs). Anyone knowledgeable care to comment? No stake in the matter, just curious.
Oh yes, Euro standards are very lax by comparison, but that's about to change. Mayor of Paris just called for banning all diesels from the city by 2020. They are gagging on the air pollution, it's much worse than ours. 50% of Euro cars are diesels, too.
I think it's an over simplification to say "the reason VW cheated was because U.S. emissions requirements for Diesel passenger vehicles are absurdly strict ". BMW apparently meets the standard with acceptable performance with at least one of its cars (X5). VW wanted outstanding performance PLUS clean air, and let the performance path dictate. I bet BMW goes the more expensive urea injection system though. VW cut corners to control cost. Oh, but that mid-range torque!