There are many different categories of vehicles, such as large sedans or small SUVs, so it would not be possible to pick the one best-rated vehicle. However, the Insurance Institute for Highway Safety (www.iihs.org) has picked the best-rated vehicles for many different categories. The best-rated large cars include the Ford Taurus and the Buick Lacrosse; the IIHS rates the Audi A3 as one of the top midsize cars. The 2011 Toyota Sienna is the highest-rated minivan, while the Dodge Journey and Lexus RS are some of the top-rated midsize SUVs.