Good points by Julian.
There is still an inherent "looking down their" nose at American cars common among Brit motoring journalists. True, many a yankmobile deserved to be slagged off over the years, but the Americans have started to put together some decent (if not exactly world beating) cars in recent years. The latest batch of Corvettes, Mustang, Chevy Malibu (not available here), new Camarro etc, are all distinctive designs and enjoyable drives.
A friend recently drove the CTS, while on holiday in states, was really liked it. No, it's not a 5-series beater, but it looks good inside and out, is decently put together, has more than good enough dynamics and, above all, it is a refreshing change from the default choices. It deserves a better press than it's getting at the moment over here.
Heck, if you think Autocar is being a bit over-critical, consider that AutoExpress gave this car only 2 stars (out of five)! I'll bet it would've given it a higher rating if it had a Jag badge on it.