@MeddlingMonk - Yes there is a little tiny space between ground and the back of the car, albeit it should be more. I see now, after some time that some things could be done better.
@Alexrd - it takes "days" and "hours"
I usually don't count exactly every hour but I was making that over a week, every day 2-4 hours. Like I wrote before, after making basic stuff I was adding some new elements every other day to make it better.