Average front-seat dimension: 47 inches Unveiled by General Motors ( GM) for the 2013 model year, the Cadillac XTS offers luxury, performance and lots of cabin space that tall drivers will love. The front seats boast 40.1 inches of headroom, 45.8 inches of legroom and 55.1 inches of hiproom. In addition to a roomy interior, the $44,075 model combines a 304-horsepower V-6 engine with lots of upscale amenities. The base XTS comes standard with everything from a Pandora-enabled audio system to xenon headlights, while an impressive all-wheel drive system is available as an option. "The XTS is just a really pleasant car to drive," Clarke says. "It's roomy, it's really good-looking and the materials in it are all excellent."