The short answer is yes. You can buy cars, trucks and tractors for cash. The more expensive the car, the easier it often is. Luxury cars in particular are routinely bought and sold for cash.
> Luxury cars in particular are routinely bought and sold for cash.
Cash? As in hundred dollar bills?
Luxury cars are frequently bought outright without debt, yes.
Literal cash, as in actual paper pieces of money, is not a common medium to do so.