I was having a discussion today that turning off the engine while still moving along at about 20mph, while the engine is still revving will do no damage to the car, apart from the obvious safety issues (no brakes, speedo etc).
I think this is because the oil pump is still turning and the engine is being lubricated so it'll be fine to do this.
Am I wrong?
Will removing the ignition key while the engine is still turning damage my car?
What will happen if this did happen?
I obviously do not want to try it in case I destroy something and ruin my car or crash as I have no brakes in an emergency!
UPDATE: I have a manual transmission, fuel injected. I mean just turning the key to ignition, not actually removing it