Speaking of Dïttinger Höhe, Dave and I made another comparaison of our cars.
991..2 RS non OPF vs 991.2 RS with OPF.
Start in 3rd gear on automatic, 80 km/h, under the bridge. We both accelerated exactly the same all the way to the gantry. Not a cm difference. Nothing. Last year we tried and Dave's car with OPF started pulling away slowly at 200km/h . But not this time. Full acceleration all the way to 7th and about 250 km/h
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964 Carrera 4 -- 997.2 C2S , -20mm -- 991.2 GT3 RS