I've noticed that some of these cars have the single vertical lights while others (in fact most of them) have the double round lights on each side. Was this another case of US-spec lighting or what determined the type of lights on each car?

__________________
2004 VW Jetta TDI (manual)

Past MB's: '96 E300D, '83 240D, '82 300D, '87 300D, '87 420SEL