I bought my current car second-hand from a dealer. The best interest rate I could get by far was the line-of-credit loan I already had for my house. I bought the car on my credit card and eventually paid for it with the loan. Automatically done by the bank, of course. Even handling cash feels slightly old-fashioned to me.
I live in a country that still mostly prefers cash to electronic money transfers for many transactions. The individual reasons for that vary but mine is that I want to minimize the ability of third parties to profile me through my purchases (neither stores nor my bank).