We have a Thule Speedway 2. We bought it because I can't manage a roof rack at 5'2" without a step ladder. It works perfectly on my Dodge Caliber. It mounts the way Knotted described hers (might be the same one). We have used it on long road trips (longest was a 6 hour drive) with no issues. It is easy to install, easy to remove. And the price is very affordable, I think it was around $80-90 two years ago. It doesn't fold flat, but this is a small complaint.

Around town I see a lot of the Saris "Bones" rack. I think that one is more expensive, but might fold flat.