Have this one for Jamie's dart. (actually the link is for a mustang one but look up the car you want it for and they will have it ) It's an awesome cover. Car doesn't get a drop of water on it. Not cheap but you get what ya pay for.
Superweave
Ultimate Outdoor Protection
Blocks 99% of Ultraviolet Rays
Small Enough to Be Cleaned at Home
4 Year Warranty