My whole point was subjective superiority. I know the kind of car I'd rather drive - one that handles well and doesn't 'wallow'. Personal choice, like you say.
As for reliability - are you saying that all American cars are invariably reliable? That can't possibly be true - off any production line you'll find complete dogs, which simply give their owners problem after problem. I've not heard of any major reliability problems with the Rover - in fact this has been one of the major plus points of the range. Does the average family in the States have 4 children?
You asked for a British car designed and built in the UK - the X-type fits those criteria as far as I know. The success of Jaguar isn't solely down to Ford ownership; it wouldn't be that hard to sell a Jaguar on marque alone. It has been a prestigious company for years, and that is why Ford aquired them.