So sorry to hear of this b.s.
This isn't going to go well with the insurance company from either side. You'll be lucky to get the most basic of replacement "market" value from either side. There will be many delays (the longer they wait, the more frustrated you'll get and more likely to settle for the lesser amount). The dealership will keep telling you that it's in their "insurance company's hands" and tell you to contact them. You're insurance will magically start to really **** from the customer service side.
Here is what you do...do not wait to hear from either insurance company with an answer. Get a lawyer NOW. Once you have a lawyer, do not communicate with the dealership, let them only contact your lawyer. Then get the car in your possession in its wrecked state and put it on a trailer. Have your lawyer send them a letter stating how much you want for the damages (has to be semi reasonable) and that the deal has to be settled in 48 hours. They won't do squat. After 48 hours, start a campaign showing the wrecked Viper around town with a sign stating what was caused by said dealer. After about 4 days of this, then let the local newspaper do an article on this lack of customer service. After about 1 week, let the local TV news do a report on what happened. Make sure your lawyer knows what you're doing and not to overstep your bounds or to do anything that could hurt your case. (you don't want to get sued)
Having a wrecked Viper parked across the street from the dealership with a big sign stating how this happened will really help get the ball moving. Hell, I'd even post it on myspace, craigslist, twitter and do a Youtube video of it. Once the Youtube video is done, get it on the internet car forums and let it go viral. You can also do a website called lakenormandodgesucks.com and post the whole ordeal on that....then go viral with that on the internet forums. Post a day to day discription of the stalling, lies and lack of service and responsibility. People will follow this better than a soap opera.
If done right, you'll get a fair replacement value for your Viper and maybe even get to sell them the domain website of lakenormandodgesucks.com for a little extra spending money
If the dealership can't take care of a Viper, how do you think they're treating your wifes minivan?? That is the feeling you want to convey. God, I'd hate to be that dealership right now.
Good luck, this isn't going to be easy and will take much longer than anyone promises you. You have to take action immediately, even if they promise you something, unless the check is in your bank it don't mean squat. Stick to your guns and stick it to them if they don't settle timely. It may cost you a few bucks, but the money spent will make you feel better knowing you're at least doing something to hurt those that damaged your property and not take responsibility for it.
Cheers,
George
to chew on and it somewhat dimishes the experience of ownership knowing that some pea-brain idiot 
is just looming out there ready to wreck your car.
That's bullsh--
