Are you strictly into driving, or driving/car building/life simulation is something you'd enjoy? If it's the latter you should definitely check My Summer Car, it's amazing game (but often also frustrating, so don't say I didn't warn you)
If you're looking for some great indie driving games, I highly recommend checking out titles like Art of Rally and Absolute Drift. They both offer unique gameplay experiences that stand out in the genre. I recently had a blast playing with a concept similar to crazy cattle 3d, which reminded me of the creativity that indie games bring to the table. Happy gaming!