After this mornings shenanigans of clearing off 6 inches of snow to find a 10mm sheet of ice covering the entire car, I have decided to buy a cover for the car. There are loads on ebay ranging from £10 to about £150, some are universal and some are bespoke to the A3. My question is, can anybody recommend a good one for under about £30? Are the universal ones any good, or will they blow about and scratch the car because they are designed to fit all sizes? Any advice would be great......thanks!