Diamondbrite / Supaguard - Good idea or just a con?
I recently placed an order for a car (as new condition, with 5700 miles on the clock). The salesman offered diamondbrite protection to my car for £269
He claimed that they offer this at no extra profit to them!! (yeah right, & you would waste 15 minutes of your time showing a video & explaining it's benefits!!)
I've seen the same stuff available on EBay for £10-15. Not sure if they're genuine, although they claim to be.
Are these worth putting on?