1985 Toyota Cressida Wagon (RWD) [with 4.0L Lexus V8 swap]
Easily fits inside with only the front wheel removed. It's on it's side of course, but can fit tons of other luggage and coolers, and does not effect the passenger/driver space.
Performance was pretty good with the old straight-6, with 26-28 mpg hwy. I am still completing the V8 conversion, but my estimates are... plenty fast, with mid to high 20's mpg hwy.