Lexus invented the luxury cross-over segment with the RX in 1998, and it has since been one of the Japanese carmaker's best sellers. Now in its third generation, the RX carries forth with more of what makes it so popular-attractive styling, great safety ratings, lots of luxury in a spacious cabin, and a smooth, carlike ride. Improved standard features in the all-new 2010 model, as well as a 3,500-lb towing capacity, make it a smart choice amongst the many other luxury SUV models that have flooded the market in recent years.