2018 BMW 3 Series Sedan Diesel vs. 2021 Mercedes-Benz A-Class

Two Sedans with more similarities, such as the body structure, market segment, ground shadow size, height, and maximum occupancy, than differences, like the model year, powertrain, starting price, horsepower, and fuel economy. First of all, there is an $8,100 difference in the base MSRP. The 2018 BMW 3 Series Sedan Diesel, an older vehicle by three model years, has a higher starting price than the 2021 Mercedes-Benz A-Class. Also, the 2021 A-Class has a more powerful engine than the 2018 3 Series Sedan Diesel, and it gets 6.5 fewer miles on a gallon of fuel. Among similarities are the body structure, market segment, ground shadow size, height, and maximum occupancy.