Do they devide the total Insurance into 6 equal portions or do they make a calculation based on each cars value vs total load value?
It depends on which claimant has the better lawyer. :lol
Seriously though, the insurance company has an obligation to protect the insured (trucking company) from an excess claim/judgment (claim or judgment in excess of the policy limits). In a case like this, the insurance company should, and typically does, hire counsel for the trucking company to conduct a global mediation conference to get all the claimants (and their respective insurance companies) together to reach a resolution on the division of the policy limits. However, as a practical matter, there is not likely to be any good resolution to these claims given the aggregate claim values far exceed the limits. Hopefully the car owners have their own coverage. Those car owners who do not have their own coverage should immediately file suit to apply maximum pressure on the insurance company to pay them first.