First and foremost, you MUST check the battery connections, not just look at them, get the cover off and tighten them yourself. I've lost count of the threads I've seen on here for all sorts of electrical gremlins, that have turned out to be a loose battery terminal. Unfortunatly, unlike say a suzuki, you can't get to read the fault codes I don't think, unless somebody knows different. Tommorrow morning, I would ring up your dealer and tell them your woes, and, 'for £91/2K, you can come and get it'! (Remember to be nice or you don't get jack)