The car wasn't going over 155 with O/D on. O/D engages 4th gear. By switching O/D off, the car remained in 3rd gear. Platz's 3rd gear has a quite tall ratio.
Bro, what kind of platz did you took to 175km/h? Either the road must be a downhill or your Platz is a 1.3 or 1.5 or you must be using some special CNG or jet fuel imported from Singapore
The reason why i'm saying this is because my father's 2005 Corolla X couldn't go over 185. It's a 1.3L and manual tranny.
The highway was empty. Completely empty. No cars, trucks, buses, mototcycles, animals (of any sort) or any other object was there (except air resistance). So I attempted the run. Otherwise in the city I'm always under the limit.