When comparing the Cadillac ATS's and the Cadillac XTS's specifications and ratings, the Cadillac ATS has the advantage in the area of fuel efficiency. The Cadillac XTS has the advantage in the areas of typical lower range of pricing for one- to five-year-old used cars, interior volume and base engine power. Based on this comparison of the Cadillac ATS's and the Cadillac XTS's specifications and ratings, the Cadillac XTS is a better car than the Cadillac ATS.
Cadillac ATS vs. Cadillac XTS Pricing
A used 2018 Cadillac ATS ranges from $17,073 to $27,994 while a used 2018 Cadillac XTS is priced between $16,492 to $31,990.
Engine Power and Fuel Efficiency Comparison
For engine performance, the Cadillac ATS’s base engine makes 272 horsepower, and the Cadillac XTS base engine makes 304 horsepower. The ATS is rated to deliver an average of 25 miles per gallon, with a highway range of 496 miles. The XTS is rated to deliver an average of 22 miles per gallon, with a highway range of 532 miles.This gives the Cadillac ATS the advantage in fuel efficiency and the Cadillac XTS the advantage in maximum range. The ATS uses premium unleaded, and the XTS uses regular unleaded.
Passenger Space Comparison
The Cadillac XTS, a large car, has the advantage of offering more interior volume, reflected in more front head room, front shoulder room, rear head room, rear shoulder room, rear leg room, and cargo space. The Cadillac ATS, a compact car, has the advantage in the area of front leg room.