thank god at least someone knows something about what theyre talking about, there has been tonnes of false info thrown around on this thread by clueless people so far
yes jag was owned by ford, along with aston martin and land rover, but they were sold as a package deal to tata motors of india about 5 months ago, jags are expensive to repair but still remain a british car
that audi 1.8t isnt really as bad as some people make it sound, those engines typically hold up fairly well, although audis are still vw's, and as much as some owners may not want to admit it they are finicky and tend to have minor problems, its a standing joke in the car world that if you own a vw or audi you should have a standing weekly appoinment with your service technician
also, the lincons are really just fords, which means that well everything else on the car will fall apart, the engine will likely keep going until you drive the car to the junkyard
if i were looking at anything in type of cars you are looking for, i would head nowhere but bmw or lexus. Anyone who knocks bmw's reputation is challenged, they have built some of the most famed engines of all time and their 3L straight six is one of the most legendary engines on the road today. Theyre powerful and fun to drive, and if you arent to worried about snow then the rwd shouldnt be a problem, but if you are you can look at an awd, although they are a little harder to find drink slightly more gas and if something goes wrong with the awd system it can get pricey. Lexus on the other hand is another great alternative, as they are toyotas the entire car will usually make it to 500k, and they are extremely comforable and relatively inexpensive for what youre getting. The es series has allways been built on the camry platform but with significant upgrades to suspension and comfort. And as theyre fwd theyre pretty good in the snow too.
Anyways, hope that helps man and good luck