I have been extremely concerned for a while now about the very significant loss of maximum charging range in my 40kwh car. I am down from the initial 141 mile max rated range upon delivery to a 120 mile range, a decrease of approximately 15% after 9000 miles of driving. I have been unable to get a meaningful response from Tesla regarding these concerns. I had been told that a new firmware upgrade will increase my maximum rated range by an unspecified amount, but after a couple of delays, I am rapidly losing patience. Based on postings here and the official Tesla forum, I know that there are other 40, 60 and 85 owners who have similar concerns, although my impression is that 40's have seen more apparent or real degradation than 60's and 85's. I will be sending a rather firm but polite email to Jerome Guillen in the next few days expressing my extreme disappointment in the performance of my car, as well as in Tesla's failure to address this issue. If anybody has any suggestions for others to contact, and is able to provide contact info, I would very much appreciate it. I had initially intended to send an email signed by as many disgruntled owners as I could recruit, but that would require much more negotiation regarding content and tone than I currently have patience for. Instead, I would like to collect email addresses of those who are also not happy with the drop in maximum charged range they have experienced and cc them on my email in order to make the point that many others have an interest in this issue. I will make it very clear that the contents of my missive are mine and mine alone. If you are interested, please post a response or pm me with your email address. I would also like to know if you have personally experienced unexpected range loss or your interest is more academic. If I only get a few responses, I may not cc anybody. Thanks all.