The back engineering wont work. Oh it might look like one of our cars but they can't make the intricate transition into putting it together so it actually works well. They took one of our electric cars and tried to do the same thing … looked pretty good too. We were in shock…we had no idea they had tried to back engineer it…, but when we took the test ride in it we could hardly contain the sense of relief upon hearing all the rattling tell tale sounds and seeing the uneven bolt and seams that indicated this puppy wouldn't last a year without major recalls in our market.