ive driven a couple, corvette stingray, lots of fords, couple of chryslers. the fords and chryslers have a higher quality control than cars for the us (because they are meant for the eu), so in general they are quite decent cars.
i generally dislike trucks and suv's, how much of the us market is that? also in general american sport cars are really bad to drive, the vette sure as was. most people i know that have american sport cars bought them because they like that style, not because they drive better than their eu counterparts.
last, ive driven more than a 100 (a lot more probably) different cars, have owned a variety of automobiles ranging from cheap clios and golfs to benzes, beemers and porsches. ive driven even more as i have a lot friends and relatives that also own exclusive cars like gallardos, 430, bentleys a veyron and many more different cars. for the most part ive also driven most of their cars (in excess of over 280kmh on highways) and am perfectly capable of judging cars for myself.
in general never once have i heared ANYBODY praising american cars. in general the people who do praise them ar hard rock wannabe people who want to own an old mustang, when they finally get their licence or enough money. besides people like this probably only americans that like american cars. most normal people and people that actually know cars wouldn't buy an american.
the best american cars are the cheap hatchbacks like the focus that are meant for the eu market. for all the other segments, there are eu cars in the same class that do the job much better, have a far higher quality and durability and look better as well. they are in general more expensive, but the quality is much higher as well.
in short, europeans make the best cars.