QCan I sue after a car accident causing totalled vehicle - in ontario?

Yesterday I was involved in an accident, and I want to know if we can sue the guy who hit us? btw, we are in Ontario.



We were stopped at a red light(with a big back up of cars), and a huge like off roading monster truck was speeding along and didn't break at all, and crashed into the back of us,and we hit another suv infront of us. My van was totalled. Insurance will only give us the value it is at right now for the van, which is only 2 years old, but they no longer make these vans.



Is it possible to sue for this loss in money? We cant really afford to pay another 20k, to upgrade to the vehicle we lost. My mom (which was driving) also does daycare at our home, and won't be able to provide, due to pain,etc it has caused, which is our only income in the house.



We weren't in much pain yesterday, but now it isn't possible for us to get even dressed alone. We know we have whip lash, but going for xrays etc. Can we sue if there is something medically wrong?



The guy who hit us, was maybe early early 20's, and probably wont have all that much money,but is it possible to get what we need to survive at least?



Thanks in advance