If the save file promises DLC cars but they appear locked or unpurchasable in your garage, your steam_emu.ini file is likely restricting DLC access. Open steam_emu.ini and ensure that UnlockAllDLCs=1 is set, or verify that the specific DLC app IDs are listed at the bottom of the file. Conclusion: Is It Worth It?
Which are you currently using to play the game?
Every road discovered, fast-travel boards smashed, and bonus XP boards collected.