Hello, and welcome. I am a licensed attorney and, since the prior attorney opted out of the question, I'll be happy to assist.
Given that your car was deemed a total loss, you have a right to the replacement value of the vehicle. In order to get that, it would be a good idea to check around locally for the price it would cost to obtain a similar vehicle, and submit a few supporting ads to the insurance company for proof, with demand for payment.
There is no direct or supplemental recourse with either Toyota or the car wash, since there was insurance involved. If you have already settled with the insurance company and signed settlement documents, you will be held to the amount agreed. Otherwise, you can continue to negotiate and force the insurance companies hand. A court would unquestionably award fair replacement value.
I hope this helps. If you need additional information or clarification, just let me know. If I have addressed your issue and/or pointed you in a positive direction, please let me know that, as well. Also, please remember to leave a positive rating when prompted, as that is the only way attorneys on this site are credited for the help we provide.