MPG-o-Matic 2010 Cadillac CTS Sport Wagon Review Summary: The 2010 Cadillac CTS Sport Wagon was primarily designed for the European market, to do battle with the Mercedes-Benz E-Class and BMW 5-Series wagons. Only a limited number of CTS Wagons will be sold here in America, unless it catches on … which we hope it does. Spend a bit of time driving the CTS Sport Wagon and you might change your mind about buying a luxury SUV.