With $120K vehicles now becoming common place, there might be longer loans. The lease is the go to method today. Or, as Dave Ramsey calls it, the fleece.
You can get what amounts to a mortgage on the massive RV's. We had a Freightliner Columbia chassis with a 30' living area box on it, when we were racing 20 events a year. It was over $400K in 2010, and had what amounted to a mortgage on it. It made sense because two hotel rooms for 3-5 nights for every race, plus meals, was more than the payment on the toterhome.
Hell, even if I were to get an allowance made available for a vehicle lease, I doubt I'd do it. There's still imputed income that is taxed.