YOU CAN BE FORGIVEN IF YOU THINK THE WORD "DIESEL" JUST doesn't fit with BMW AG's image of performance and luxury. Americans, and even many otherwise astute car fanatics, still think diesels are noisy, dirty powerplants that deliver glacial acceleration. That makes diesels a tough sale against virtually any gasoline engine in the U.S. market, and an almost insurmountable challenge when the in-house competition comes from BMW's lineup of flawless, and much-lauded, gasoline engines.
展开▼