So sorry to hear about your accident. I had a similar case. I was rear ended in my 2003 Lexus es300 (15K miles) - I did not hit the driver ahead of me and there were no other vehicles involved. I drove immediately to the best repair shop in town (the one where all the high end vehicles go) and left my car there for the damage estimate. I drove home in a mid sized rental. the driver's insurance company did not bicker at all about the $12K in repairs nor the 2 month rental. I am having to work hard at getting the diminished value however. In my case, the vehicle had 10 hours of frame work - the trunk had been hit square and was nearly flat - the rear view window was not broken. After the car was fixed, I brought the vehicle into my Lexus dealer and asked for a written estimate of how much they would have paid me on trade in before the accident and how much they would give me after the accident. Even the dealer was reluctant to give me anything in writing. Other dealers (mercedes, acura, etc.) would tell me verbally what the difference was but would not put it in writing citing "legal issues". At one point I went in and actually went through the process of purchasing a new car in order to get a written trade in value. I have sent that information to their insurance company and intend to follow up every week until I get my money. In my case it was 30-40% of kbb-trade in value. it's worth it to fight for it. good luck - diane
p.s. you can google on "diminished value appraisals" to get people that will write up appraisals for you - it will cost you $300 or more - they guarantee you'll get your 300 back, but not the entire diminished value. I'll try doing it myself first - and use them if I don't get satisfaction.