I would expect that all the cars in the video would have ESP or VDC (or whatever it's called). Standard it would turn on when you start the car anyway, regardless if it was off before so I think it would be on in the video also.... BTW, not all cars allow you to turn it off, unless you disconnect a fuse or so....
I'd like to see how all cars handle with and without ESP too though. IMO cars that rely on ESP to handle halfway decent should be avoided as a family car, as Sod's law says it will not work when you finally need it...
Regards
Cuore_Sportivo