After an idiot caught the wing mirror of their old banger on my Porsche, breaking the mirror but leaving the housing undamaged, I was horrified by the cost of the Porsche replacement part. Being a heated mirror and an aspherical one I was concerned that a non OEM version wouldn't be a true replacement, but give the cost I decided to give wing-mirror, co.uk a try. Order arrived quickly, straightforward to fit and so far looks to be the answer. Slight, very slight, defect on the edge of the mirror lead me to give it 4 out of 5 stars. But I'm a perfectionist and 90% of people probably wouldn't notice it.