Having a paid off, newer model vehicle is a huge accomplishment as it's one less worry on my mind.

Walmart does not play middle man.Even in the auto industry  the manufacturer does floor the vehicles for their dealers but they charge interest on that .. 

Does anyone have any experience with an investment vehicle like  https://fundrise.com/?

This is a new vehicle with absolutely no track record, but RE has one of the longest, if not THE longest track record of investment returns.

Vehicle?

Once you have an objective, you can determine the right strategy and vehicle and that will determine what the best market are for these strategies and vehicles.There are many advice or tips I could give you but, again, depending on the situation.

Every night this week those motels have 3-5 vehicles in the lot. 

Since 2003 my business provides me with vehicles (RAM trucks, maintenance van) and equipment that is titled to and paid for by the company.

Those investment vehicles have certain basic requirements which each loan must meet, and the mortgagor being an individual is one of them. 

Cars are owned outright (older but good vehicles) cable television was cancelled, insurance policies reviewed, spending habits assessed etc.