i spoke with a business acquaintance yesterday...we like to talk about cars when we see each other and he really likes his nice cars...he mentioned he just bought a 2013 535 and picks it up this Tuesday...i figured he liked his previous car so much, he simply decided to upsize...his previous car was a 335d, which he raved about whenever i saw him...it was only about 5-6 years old (it was already about 2-3 years old when he bought), but figured maybe he was keeping it for his wife or something, so i asked what he was doing with it...turns out there was some problem with the emissions system, and it was going to $6k to fix it...so he traded it in and walked away from it...likely why diesels are probably on the way out, and why i advised my parents against getting their TDi modded to comply with emissions (told them to just take the cash and move on).