i M Sport vs. Cadillac ATS , Lexus IS F Sport. We convene a conclave of the segment's greatest and latest. Don't know which Lexus vehicle is right for you? Use our comparison Use this tool to compare up to two Lexus or competitor vehicles IS F SPORT AWD. This comparison test is a tale of two locations. The first is the test track, and the Infiniti beat the Lexus up and down said track. In terms of straight-.