Dear Soulstar,
So the best time to buy a used car is september, as thats when the registration changes to the next years plate, so all other registrations depreciate in value somewhat. However, if you wish to purchase a car before then, then I'd suggest that waiting six weeks won't make any difference. To be honest whilst dealers often give good finance packages and reductions on new cars during the summer they very rarely do any such thing for used cars. However, remember that any car they have sitting on their forecourt used or otherwise is costing them money to have out there as they need to cover it with their insurance as well as maintain it etc. so you should have some bargaining power when discussing either the price of a used car or financing. The only caveat I shall add to purchasing now as opposed to after the MOT is that a dealer will automatically be wary of a car of a certain age that is approaching an MOT but has not had one yet, and so will automatically deduct the price an Main dealer MOT from the car. Unfortunately as I'm sure you know as fun as purchasing a new car is, one often runs into incredibly bad sales people who attempt to intimitdate one into a sale as opposed to finding the right car for the right person. Good luck
RWJ