Yeah I plastidipped my 5 for similar reasons right down to the faded the red paint and know all about the abuse, do people notice the supercharger under the bonnet? No they notice it's wrapped in what's basically a red rubber condom, and point it out to me... frequently... At the moment my dip is looking like shit due to greasy finger prints, oil, and petrol (top tip, make sure your fuel cap o rings aren't perished before going on a drift day) so it's just there to protect what paint is left really now. Luckily I've found somewhere that will do a job that's reasonable enough for a not a lot so I'm going with a permanent spray job pretty soon.