I've got the Saris Bones rack, fits fine on my A3.
Great rack, but:
- don't put the bottom feet directly on the bumper, put them against the back of the bootlid - if you put them on the bumper the weight of the bikes puts too much strain on the bumper and flexes it, causing the paint to crack on the corners (learnt by bitter experience). /ubbthreads/images/graemlins/frown.gif
- It's got enough space for 3 bikes, but if you put 3 bikes on it it wobbles around like a jelly. Fine with 2.
- Put plenty of duct tape on the car to protect the paint from the hooks/straps etc.
- DON'T put duct tape on the bumper because when you come to pull it off it will take the paint with it!!! Learnt again from bitter experience (not on the Audi, on the previous car but don't take any risks).
It's been down to the alps twice on different cars and has show itself to be completely stable at speeds upto 110mph, so a great rack.
It also fits loads of different cars. The downside to this is your mates will constantly be borrowing it! Also the alloy fixtures go furry pretty quickly in the wet but it doesn't seem to affect their affectiveness.
My advice would be to buy whatever rack you settle on from Halfords as they'll take things back no questions asked if it doesn't fit.
HTH!
Are you into MTB or road stuff BTW?
