Go a bit quicker
Make JSLint happier
Don't push position until after updating car
We only care about coords (for now at least)
Fix indenting of updateCarPosition function
Prepend 0 to decimal numbers for JSLint
Try and actually steer the car
If GPS data is identical to previous, ignore/skip
Only steer for 500ms, then revert to straight

Keep a constant do define straight. It doesn't seem to be 0.