So i'm thinking about wrapping my car with 3m Gloss White vinyl wrap in the near future. What I am unsure of, is how much wrap to buy. I saw a post where a guy wrapped his m3 for only $120, and it said he used 25 yards of vinyl at 48 inches wide. But some websites are saying for a 2 dr coupe you should get 40 x 5 ft. I am on a bit of a budget and i was wondering how much should i get with a little extra in case i mess up?