One Game A Month - Back in the Saddle!

I've decided to take up OneGameAMonth challenge again.  Here's what I have after one day working on my July submission.  The theme is Far And Wide.

The terrain is (theoretically) infinite, and procedurally generated at runtime.  In reality, I'm likely to run into some floating point precision errors after driving too far.  I'm not sure how much of an issue this will be.  I guess I'll find out.