This vehicle is an under-estimated member of the Cadillac family. Between the sporty CTS and the classic DTS, the STS strikes a balance between athleticism and refinement. Down to a single engine possibility, it features a 302-hp 3.6-litre V6 with direct fuel injection technology. Both front- and all-wheel drive are available. This is one of the most competent large sedan on the market and at a very competitive price.