In some VW Golf vs. Mazda3 dimensions, the VW Golf is bigger than a Mazda3 hatchback, while the opposite is true in others. Specifically, a 2022 Mazda3 hatchback is 8-inches longer, 0.1-inches narrower, and 1.5-inches shorter than a 2021 VW Golf. On the inside, a 2022 Mazda3 offers 92.7 cubic feet of passenger volume and a 47.1 cubic foot maximum cargo capacity. The 2021 VW Golf provides 93.5 cubic feet of passenger volume and a maximum cargo capacity of 53.7 cubic feet.