Bob, don’t know if Cambridge is too far but I would highly recommend Marshall Seat.
i was looking to buy an Arona for by daughter Xmas 2018 using Carwow. Marshalls were one of the dealers who gave me a great quote but I opted for a local dealer who told me they could deliver pre Xmas day, a Sunday. On the Thursday they told me they couldn’t deliver until January. I cancelled and rang the other dealers who said the same except Marshalls who said they had one in stock. We sorted paperwork and payment over email and phone and they delivered the car from Cambridge to Surrey 2 days later , on Xmas eve.
Worth checking out.