The new 2021 Mazda3 2.5 Turbo sedan starts at $30,050, with the hatchback version costing $1,000 extra. A 2.5 Turbo Premium Plus model starts at $32,600 for the sedan and $33,900 for the hatchback. Owing to its premium nature, the new Mazda3 is priced higher than the Civic, Corolla, Sentra, Elantra, and Forte.