I went with Tesco for a loan 7.2%, paying £7650 over 28 months for a £7000 loan, which I think is great. I prefer buying using a loan,as the car is then HPI clear incase any circumstances change, and paid for as far as the garage is concerned, jsut make sure you knock the garage right down as you will not be benefitting from any of the possible finance offers that they sometimes give.
