I have an Audi A1, which has a small spoiler on the back; it's built into the car, not something I have put on. I have been looking for a bike mount/rack that I can place on the rear of the car.
A member of Halfords (popular every-day automobile and bike store in the UK) staff told me that because of the spoiler at the top, there isn't a suitable rack for this type of car. At least not one that they sell.
I am aware brand recommendations are a bit off-topic here, but perhaps there is a specific type of rack I need to be searching for? Roof mounted rack is not an option for me unfortunately.