I should have seen that one coming. I have seen a lot of tradespeople who can not fit some things in a van, but cannot allow many things to get wet in a pickup truck. If only there was some sort of swappable back side to a van/truck... But every time I have seen that tried, it has failed.
I certainly see a good reason to own a car on top of the rest. Why pay fuel costs for a van, when you are driving to the grocery store.
Having a car would mean you can claim the van, and truck are only used for business reasons. You might have them owned by an S-Corp, and make them 100% business deductions. Obviously, I am not an tax expert, and just making suggestions of what to talk to a tax professional about.