Ran at Gerotek.
1st run 196.200km/h (backing off before the banked corner)
2nd run 196.720km/h (flat out all the way)
I think Im not getting any higher because of the 16" 205/45 wheels.
Strange thing is my revs were holding 5,500rpm...one would think that once the 172 is in the power band it would accelerate