In general, we British always considered American cars to be rubbish. Not out of jealousy or pride for Euro cars, but because of the inferior and cheap parts used to build them. For years, to the American car makers, luxury simply meant bigger and muscle car meant bigger engines in a car with no regard for re-design to handle the larger engine. The interiors were thin, cheap, mismatched plastic pieces, the body panels would echo when tapped with your hand, and they had poorly designed dashboards with controls in the wrong locations. Even the muscle cars like the Mustang and Corvette were rubbish - they contained a large, powerful engine with no upgraded suspension or engineered handling capabilities to match it so all they will do is go fast in a straight line. The moment you need to turn at high speeds, or brake suddenly, the car went bonkers and slid off the roadway. In fact, American cars are regarded in Europe as corner=phobic because quite simply, they don't do corners well at all.
That said, America has come a long way in the last few years. They are still under par compared to Japanese or European car makers, but they are making progress. Prior to my first M35, I owned a Cadillac Escalade ESV (which is the Chevy Tahoe with extra chrome bits and a longer wheelbase). It was totaled about a year after I bought it when a Ford F350 truck ignored a red traffic light. I have to say ... The interior was drastically better than the usual American car, and although it still had it's share of dodgy plastic, the fit and finish was pretty impressive.
Here is an old vid of the Cadillac CTS done by TopGear:
http://youtu.be/ik8bM6prQjA
That said, I still have an american SUV (Chevy Tahoe) which is used solely for transporting rugby gear and players and to take my kids (4 huge dogs as seen in my pics) to the docs for checkups. Yes, it is sort of cheaply made, but it is perfect for what I need.