I posted on the roadster section (Beep beep) a while ago that my car kept beeping at me at 90mph, even though the wing was up. Then it stopped pretty much on its own. Then it started again. Next the car didn't want to start, just started to turn over then nothing, turn key back off again, try again starts perfectly normally. So as everyone on here reckons the battery lasts less time than fake Duracells I got a new one. All fine again for 2 days, then the starting thing again, and this morning the wing stayed up. So I suspect I've replaced a perfectly good battery (only 45 quid but...), anyone got any more ideas? RCM? CPS? Wheel sensor? I really don't want to just start replacing things for fun. Odd thing though the car is running quicker, but still get an occasional misfire when pulling away in second after being a bit vigourous.