Have you ever bought a car, even a reasonably priced one that you could well afford? What would have happened to your finances if, eg, you signed a 3 year car

Have you ever bought a car, even a reasonably priced one that you could well afford? What would have happened to your finances if, eg, you signed a 3 year car note for $800/mo and yet the entire $25k was removed from your accounts all at once?