Here goes ...
uncomfortable seats with poor lumbar and shoulder support, routemaster steering wheel, steering wheel melts, steering wheel has no reach adjustment so you practically gotta sit on the thing to use it, everything made of plastic rattles, erratic idle and jumpy drive from cold start, stupid silver seat belts, dumb auto wipers, mis-mash of interior trim colours - some parts dark blue, some black, some silver ??? , car tax and insurance is high, no possible way of significantly improving performance without having to remortgage (some could say this is because it's already so good the next steps up are very expensive), exhaust is made of tin foil, exhaust mounts are made of wrigleys gum, poorly designed brake calipers (should be like whats on the 197), and cheapo surrender monkey work striking french build quality.
But i still love it, and always wanted one