You have to pick:

I suspect one would not survive driving through a puddle at high speed.

Also it could be very dangerous indoor. One accidental splash and you are sportscar in a hallway. That can't end well.

Let's say that "warm" and "cold" in this case means "icewater" and "almost painfully hot", to make the circumstances a little less likely to happen by accident.

This would be problematic when someone flushes the toilet while you are in the shower.