Thanks for playing. I agree the steering is a little difficult, you can improve the turn if you buy the turn speed upgrade in the shop, this helps with the turning. The initial acceleration is a bit quick though.
I see the shop has a display problem, probably those Upgrade lines extend too far on the web version but for some reason it's not pushing the parent to resize.
"SimplePoly City" is a great asset, so easy to work with. I wish I looked at their example scene, it would've saved me a day of work where created my own!