I wanted a four wheel drive vehicle with high ground clearance. Either a truck or SUV would have worked for me. After discovering that my wheelchair would not fit in any truck or SUV conversion on the market, I carefully examined a variety of crane-like devices that would place the PWC in a pickup truck bed.
My conclusion was that unfortunately none would work with my size of wheelchair. Even if I could get one to work, it would leave the chair exposed to the elements. I investigated pickup truck shells that would raise up for loading the PWC and then lower down, all at the touch of a button. None would work in a garage and none provided enough space for my wheelchair. In the end I rejected this notion.
The best piece of advice I received was to get the wheelchair first and then find a vehicle that would fit the wheelchair. My wheelchair is too large to fit in many accessible vehicles.
I am still able to transfer and drive. This led us to get a full-sized van with a wheelchair lift that loads from the passenger side of the vehicle. We chose a Chevy Express conversion van because it is tall enough for me and available with side doors on both the passenger and driver's side. That makes transfering to the driver's seat so much easier for me. I consider it a necessity at this stage.
When I can no longer transfer/drive, we will replace it with a van that puts me and the wheelchair in the front passenger position (probably a Sprinter or Transit style van).
We bought a used, high-mileage, 11-year old van to keep the cost under control.
If I had to do it again, I would get a slightly different van. First, I would get a 3/4 ton (Express 2500) rather than the 1/2 ton (Express 1500) that we did. Second, I would get one with side doors that extend into the raised roof. Ours does not, and I must recline the PWC when I enter or exit the van. It is perfectly workable, but just one extra step to remember (or, in my case, occasionally forget).
Our van came with an EasyLock to lock the wheelchair into the van. It works fine, but I recommend against it. It requires a plate be installed on the bottom of the PWC with a bolt that sticks down giving about 1 inch of ground clearance. I manage to catch the bolt often while out and about on the wheelchair. I have not come up with any alternative I like better, but am actively looking.
Good luck with your search. For me, there was no perfect solution and I had to make substantial compromises. We are learning lessons on this van and will apply them to our next van purchase.
Steve