To earn the award, a vehicle must receive the top rating of Good in a front, side, rear and rollover crash tests. A vehicle also must have electronic stability control; this feature is standard on both the CTS and the M series.
The 2011 BMW 5 Series, 2010 Hyundai Genesis, 2010 Lincoln MKS , 2010 Mercedes-Benz E-Class and 2010 Volvo S80 have also earned the award among large luxury sedans. IIHS has also tested the 2010 Lexus GS, 2010 Audi A6 and 2010 Acura RL, but these vehicles did not become Top Safety Picks. The GS and A6 received an Acceptable rating in the roof-strength test, while the RL received a Marginal rating.