254km/h in Audi A4 2.7TDI of my father (190hp) 2010 year of production
When reached that speed (age 23) i learned to appreciate everyone else going over that speed regularly in race. I went that far only for few seconds, 5-10 seconds and lift the foot of the gas, it was so fast.
If anything went in front of me, no escaping, i would hit it and that would be it.
I never went that fast again nor i tried to but i wanted that and i did it for a pleasure.
Afterwards same night, 10-15min from that top speed, was driving 190km/h constantly and felt like i was driving 100km/h and i was totally in control of the car, didn't felt that 190km/h
[Edit] Now we bought Audi A5 Quattro 3.0 2011 year of production, it has 245hp, 55hp more.
So i will have new top speed soon, i hope so