[stomachmonkey]

I'd rather shift into Nuetral and risk blowing the motor. On a modern car the rev limiter should kick in regardless and you'll still have full braking power.

As far as turning off the ignition on a keyed car not so sure I'd try that.

Do all steering locks work the same? Meaning does the key need to be physically removed to engage it or will it engage on some cars if the key is turned all the way back but not removed?