jake, 1. I have such a car as you have. = The car I have is one of the same type as your car. This is an archaic or literary turn of phrase. 2. I have the same car as you have. = The car I have ressembles your car in every relevant aspect. Of course, 2) could cause an occasional confusion. It could also be interpreted as meaning that that there is only one car and we both have that exact same car. If you were renting a car, for example, and you discovered that the rental company had given both of you keys to one vehicle.

"2. I have the same car as you have". is correct.

Now I got it.. thank you all.

second one