Does anyone have experience of the Ford B-Max please? I'm looking for a "tardis" style car - small on the outside but spacious/practical on the inside. The sliding rear doors of the B-Max look useful but I'm concerned it might actually be more difficult to strap a child into an ERF seat than a car with normal doors? (I have the excellent Axkid Minikid seat.) My car budget is £5k. Any advice?