If you don't want to use an executable tool, you can manually replace your save file with one that has already completed all challenges.
Select your profiles.db3 file from the folder mentioned above. city car driving unlock all maps
The most common way to unlock all content without playing through the career mode is by using a specialized "Unlocker" tool like . This program modifies your game's profile database to grant full access. If you don't want to use an executable