How can you guys say American cars are in the Dark ages?? because they don't build all tiny cars? the Yank engine technology ranges from 4cyl to 10cyl. While the racers here in US have been using stand alone engine mgmnt, you guys are just starting to catch up.
Why do they swap with a dirty great V8? because we can. Same reason why some Fezzy's,transits, focus's, Ka's, S1/S2 escorts put in the Cossie engines, for more Power!