My son found this one. A video from 1987. RUF Porsche at Nürburgring. The famous (to those who know her) 911 CTR "Yellowbird".
Absolutely without any electronic help. Driver was the then chief testdriver of RUF. May be not all of you are aware of this video.
http://youtu.be/OSMCfPASImQIt is quite impressive to see how he handles the car. In our times of ABS, ESP. PSM etc. not many drivers would be able to drive like that today. TBH I would even not desire her, even if I could afford her as she would kill me instantly.
Here is some background info about RUF if you like, in English language.
http://youtu.be/U9QoL0J0vSM