Two Sedans with more similarities, such as the body structure, market segment, starting price, ground shadow size, and maximum occupancy, than differences, like the market segment, horsepower, fuel economy, and height. First of all, the 2016 Buick LaCrosse has bigger and thirstier engine; the 2015 Volkswagen CC gets 2 more mpg. Also, the roofline of the 2016 LaCrosse is slightly higher than the 2015 CC's. Among similarities are the body structure, market segment, starting price, ground shadow size, and maximum occupancy.