That's a part that I have difficulty understanding (or being overly concerned about).
At lot of things can go wrong with a car to make it stall at speed.
As far as I'm concerned, so, what if it does, no power steering, no power brakes; just muscle the car off the road and press real hard on the brakes.
Which brings to mind a not-too-far-back-in-the-day story. Our daughter was 16 and she was getting all primped up for a date. She said her date was going to pick her up in his parents car at our house.
All of a sudden there was a BIG crash at our garage door (our driveway slopes steeply down to our garage). We ran outside and here this car had crashed through the door and part way into the garage.
Her date was totally embarrassed and ask to use our phone to call his mom. She came over and had a garage door repairman there within an hour.
The kid said that the car had stalled and it didn't have any steering or brakes.
I mumbled under my breath as I went back into the house "learn to drive the fucking car" and SMH.
That was their first and last date -
humfrz