My 23-year-old V12 7 series has electrically heated catalytic converters for this very reason. Thanks to those, according to German regs it qualifies as a ULEV!

My 23-year-old V12 7 series has electrically heated catalytic converters for this very reason. Thanks to those, according to German regs it qualifies as a ULEV! I think it still stinks at first start. Also, the cats cost two grand each to replace and the car requires a second battery to power them without draining the main starting battery so much that the car won't turn over. That's probably why we don't see more of this...