Prof Seeking Summer Car Rental

I am looking for a clean, automatic car to rent this summer, with about 600 or so miles/month at most. Dates are June 10-Aug 13, possibly extended to Aug 23. I'm California licensed, perfect driving record. Ideally your insurance would cover, but I can arrange to add my own separate insurance. No cars with smoking or other strong smells, and in turn I promise to return that and keep yours perfectly clean! Monthly price would depend on insurance arrangements.