There is also a 4 bike version of the xport rack. I have the 2 bike one on my smaller car, and it's a great rack for the price.
One thing, when you get it, add some grease to the threads on the nuts that you use to adjust the wheel base and especially the nuts used to hold the bike in place.
(FW, I also have the 4 bike T2 on my truck, and it's a better rack, btu much much more expensive.)