2011 Cadillac CTS

The 2011 Cadillac CTS and Infiniti M have both earned the Insurance Institute of Highway Safety’s (IIHS) top rating of Good in new roof strength tests that assess how well vehicles would protect people in rollover crashes. In doing so, they have beat cars like the Lexus GS and Audi A6, both of which scored only acceptable ratings, as well as the Acura RL, which only rated as marginal for rollover protection. The two stylish luxury sedans also join other prominent four-doors like the BMW 5-Series, Hyundai Genesis, Lincoln MKS, Mercedes-Benz E-Class, and Volvo S80, all of which are also Top...