The spring that was on the car is a tension spring with a loop at each end. The loops are on the same plane (i.e. not 90 degrees offset or anything) and the loop openings are mirror imaged - i.e. both open toward each other on the same side of the spring - and not one opening on the top, one on the bottom etc.
Overall length (including the mounting loops) the spring is 44mm. The spring part itself is 22mm long and has 16 coils. The wire diameter is 1.3mm.
Overall outside diameter of the spring is 14.5mm.
The mounting loops are 12mm outside diameter and come around in an arc of 270 degrees.
Sorry cant upload a picture to show you.