The TSX Sport Wagon is based on the standard TSX sedan, with the same engine and cabin tech. The only differences are that the TSX sedan can be had with a V-6 or a manual transmission, neither of which is available for the wagon.
Acura designers did an excellent job fitting the wagon back to the TSX sedan. The roofline stretches back naturally, with a slight curve, while the side windows remain well-proportioned.
The cabin tech in the TSX Sport Wagon is excellent, with hard-drive-based navigation. These maps look much better than those found on older-generation Acuras, and include traffic information.