though in-car tutoring by skilled drivers seems effective

I did one that involved a lot of practice. Learning how to actually hit the brakes for real was awesome. It is especially useful if you still have a car without break assistant (which you should not). Other parts were driving on wet roads, partially wet roads. How to get control back when loosing it. Effects of aquaplaning. And a visible demonstration of the square law of motion. 10 km/h really can make an impressive difference on bad road conditions.