Ian,
I left my 3.7 Roadster for 2 weeks in the garage and had no problems to start it.
But a month ago I had problems with the electrical system, too. After having started the car the brake lamp was illuminated (but the park break was not applied), the signal lamps and flash lights didn't work. I opened the magic aluminum box on the right-hand side and pressed all these small black boxes into their sockets (because some were not really fixed) and now everything was o.k. and worked without problems. After this exercise I am not sure how reliable the electrical system is.
Regards,
Axel.
