I will go ahead and admit I have paid for a vehicle before it was delivered to the dealer, in 1988, a Ford Mustang GT, had all the fancy flarings, 5 speed manual, and 302 V8. I saw the vehicle 3 months after I started paying for it. Nothing like receiving a call that it had been wrecked when it was being backed off the truck at the dealership. When they were backing it off the the truck ramps, the delivery driver turned the wheel and front end fell off the ramps, the guy panicked, floored it, which drug the front end on the steel ramps, ripped off the front bumper, then into 2 parked cars on the lot. It took another 2 months for the body shop to repair it. It never drove right the entire time I owned it, you could tell they had painted it when it was starting to fade about 4 years later, and would eat front tires. I will never pre-pay again, they can sell it to someone else, I will go elsewhere.
This is probably a one off, better luck winning the lotto, but it does happen.