150 on the clock..... scared me 
vauxhall clocks read at least 5mph slower than your actually doing. Off the clock should be do able in your 167bhp Vectra 
It is....  I think I could have beaten the pikeys and the seagulls to the tip today.
The little turd in the Honda Accord  2.2 with a Halfords rear wing ran out of puff at 140....
I may have to sell the black slug as it seems to be a boy racer challenge machine and will cost me my license!
The Bell end in the 200SX with popping and farting fell foul on the long strait past Queen Vics road and I am ashamed of doing such things... but I got my wiring stuff for the stereo... for£3
So f**k them all...
PP