I just went to my local Walmart and bought one of their $50(Can) covers.
Its made by Fastco. The cover is a size C and it even has type r in the listing on the back of the box. I cover my R and my winter beater(92 Integra 4-door)with it. @ like $35U.S. your good to go! just make sure you wax up your car nice b4 covering it.