I was playing last night and came up with an interesting idea. Litigation and Insurance.
Right now, if a vehicle is destroyed, you loose tens of thousands of dollars with nothing back. Some people use this fact to destroy competitor's road vehicles with a train. Since the train doesn't get damaged, this is a very nasty attack tactic. Hence the idea of litigation.
I believe that a good feature for this game would be a litigation function, where if people die from an accident involving one of your vehicles, you get slapped with a nasty lawsuit, costing you A LOT of money depending on many different factors, from the severity of the accident to the net worth of your company.
Naturally, Lawsuits are very nasty and could bankrupt a company quickly, and loosing vehicles when you are already morgaged to the hilt is a bad thing already, so Insurance should be added, maybe several different types, to prevent against loss of certain vehicles, different percentages of the values of the vehicles, and maybe even litigation insurance. Naturally these things would increase operating costs a bunch more, but the insurance aspect would add another element to the game.
Both can be expanded from here, (such as allowing paying for frivolous lawsuits against your competitors to increase their operating costs or countless other things) but I think the basic Idea would be a good addition to the game.
Alas, I don't have the time or inclination to do it myself, so Unless someone out there likes these ideas enough to put some into it, I guess the worlds will be free of ambulance chasers. Alas, what a loss