[nurettin]

Paying things with credit instead of savings is a /terrible/ mistake?

[stevekemp]

Paying 15% interest is a terrible mistake, yes. Especially for a depreciating asset like a car.

[nurettin]

Depreciation is a concern if you are intent on selling said asset. If the credit deadline is one year, said friend will only pay 15% more and get to actually drive the car. That doesn't sound much like a terrible mistake, I've seen much worse.