I have a Thule car rack which is very good, although expensive. Very easy to put on and off and its solid as a rock
http://www.thule.com/en/gb/products...bike-carriers/thule-clipon-high-9105-_-910501
or there is the 9106 version depending on which fits your car.
http://www.thule.com/en/gb/products...bike-carriers/thule-clipon-high-9105-_-910501
or there is the 9106 version depending on which fits your car.