Taking delivery of a new A4 Sport Ultra on Friday, on my (current) A3 I have a bumper guard on the back bumper sill, to protect it when taking luggage in and out. I'm a photographer so constantly carrying around large boxes of kit in the back, without a guard it will get scratched to pieces. Does anybody have such a thing? Audi only seem to offer a thin piece of clear tape, which doesn't look very effective to me!