Hello,
I just tried the game and wanted to share a few thoughts on the game.

1. The graphics are nothing short of awesome, especially for an indie game. Some models could be a bit more detailed, and the Veyron is way off-model, but overall, it's very, very polished.
2. The game mechanic is great. The city really feels like an open-ended environment, and I really appreciated how target points work, they force you to kill all nearby zombies, not only some pre-placed ones. Very good design, and the zombie variety is great.
3. The environment physics are tight and very fun. Plowing through fences is really satisfying. Ramming through cars, blowing them up is even better. It gives you this great, empowering feeling gamers crave so much. Unfortunately, not so much can be said about the car's physics. It feels way too static. I know it's a bit cliché, but GTA (the very first one) nailed fun car physics pretty much perfectly, especially the handbrake. Zombie Driver's handbrake feels like coitus interruptus
4. The car audio definitely needs work. Using acceleration samples has never been a good way of simulating car sounds because they always chop at the wrong moments and never really match what's actually happenning on-screen. It usually sounds much better when using fixed RPM samples and vary the pitch programmatically.
5. I was convinced motion-sickness was for pu**ies and all my experience playing games would make me invulnerable to such thing. Not so much. I can barely play more than 15 minutes without wanting to throw up. It really is the first time this happened to me while playing a game and really don't know what's causing this.

In all seriousness, the game is great, and definitely worth the 10$ you are selling it for. Keep up the good work, and I hope to see a lot more from you guys.

Agreed that the car audio needs a little work, but honestly I had no problems with motion sickness. I thoroughly enjoyed the graphics and the gameplay, I'm more infuriated that the game locks me out after I beat it, with no option to replay any level or use any of my unlocked powerups. Only starting from scratch is the option. Way to take an A+ game and turn it into crap.