This app was mentioned in 5 comments, with an average of 1.20 upvotes
If you could combine something like this game:
https://play.google.com/store/apps/details?id=com.hutchgames.smashbandits&hl=en
with car battles like you are doing, that would make an excellent game I would definitely play.
Smash Bandits Racing | 4.4 rating | Free with IAP | 10,000,000+ downloads | Search manually
> Named as one of TouchArcade's Top 10 Games of the year. From the makers of Smash Cops – crash through America in the craziest road race to hit the Google Play Store. Power up to faster ...
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Maybe you'll like Smash Bandits Racing.
https://play.google.com/store/apps/details?id=com.hutchgames.smashbandits