Neither did I mate, till I sold my 3i recently - took a combination of cash and bankers draft on that, and to be really safe I went to my bank my the buyer and deposited it there and then and they gave me the all clear and everything was fine

Basically it's gonna clear as it can't be stopped and it is the bank (who wrote the draft) thats paying you the money as the buyer has already paid the bank the money.... If you get me.

I'd deffo use it again when selling a car - nice and easy