Two Sedans with some similarities, but otherwise different in most aspects such as the model year, powertrain, starting price, market segment, horsepower, and fuel economy. First of all, there is a notable difference in the starting price of the 2016 Honda Accord Sedan, which is $6,810 less than the base MSRP of the 2013 Buick Regal Hybrid, which is three model years older. Also, the 2016 Accord Sedan has bigger and thirstier engine; the 2013 Regal Hybrid gets 2 more mpg. Among similarities are the body structure, ground shadow size, height, and maximum occupancy.