Is a blue-smoke blowing 2009 BMW 535i xDrive Touring Wagon a good idea? This long roof is dressed in M Sport trim and draws power from the 3.0L inline N54. It looks sharp and it has some grunt.

The engine powered several BMW models, including the 335i and 535i, the base-model X6 SUV from 2008, and the Z4 convertible. The latter debuted toward the end of the decade and was the last BMW ...