If Nissan don't offer it, it might be available from here. But how many detailers would dare apply this coating, they might go out of business.
Ultra Ever Dry - Waterproofing Coating
Vid of technology in action
MY11 Daytona Blue, Litchfield Manifold EFR 6758's, Whifbitz 102mm exhaust, AMS FMIC, ASNU 1100cc Injectors, V5 EcuTek - 852bhp / 654lbft, Alcon Superkit RS29 pads, Litchfield Suspension, Mines steering wheel, Sextons Audio