The Maisto Mustang mold for the 99 GT , Cobra R & '03 Cobra is basically the same. The windshield part is still the stock Cobra R part. I just cut part of the top off & drilled out the 2 rear rivets. Once the top is removed , the rear shelf already has the holes opened for the convertible boot (from a 99 GT) , so why wouldn't I use something that was already made for it ?gafotes said:Bah, I can tell you cheated. The place where the top would come from was stolen from another Cobra convertible. Looks good though. I really like the Cobra R in convertible form.