231.794 mph, Capitol Raceway, Crofton, MD, September 8, 2001. 1972 Chevelle pro-street doorslammer. Fastest charger mile ET I ever achieved with that car.
Usually get into the 160's with my track car ('97 Vette) at VIR, but have never been able to crack 160 at Summit Point. On the runway at Potomac Airfield I've hit 180... had more, but couldn't get there before having to brake.
I never speed (beyond the speed of traffic) on public roads though. Seriously, never.