My SL has had one owner from new till I bought it and she's never been cleaned under the bonnet. As a result its dusty as hell but 'honest' looking as Mike Brewer would say. Is has no leaks or anything scary and in some ways I think it looks reassuring that someone's not trying to hide something, but a bigger part of me can't wait to get cleaning! What are your thoughts? Would it put you off if an engine bay is too clean?!