Maybe its my paint, but everytime I ever used any meg's wax on my protege, it would ALWAYS leave streaks. I tried the gold class and the NXT, but I had the same problem. I always waxed after washing in the shade with the surface cool, but always had a problem. I just used the NXT on my step dad's Tribute, and it worked wonders. Went on easy and came off easy! I really like my zymol with S100, but the NXT is a really quick alternative that gives good results. I'll try it on the stang next time.