Two Sedans with more similarities, such as the body structure, market segment, starting price, ground shadow size, and maximum occupancy, than differences, like the horsepower, fuel economy, and height. First of all, the 2015 Buick LaCrosse has bigger and thirstier engine; the 2016 Nissan Maxima gets 4.5 more mpg. And finally, the 2015 LaCrosse is slightly taller than the 2016 Maxima. Among similarities are the body structure, market segment, starting price, ground shadow size, and maximum occupancy.