Today I finally got to get a go at the German Autobahn with my 2017 GT86 with automatic gearbox. The weather conditions were rather good, with an air temperature of 20 deg. C, a blue sky and almost no wind. The speedometer read 234 km/h or 145.5 mph, which is above expectation.
The car is in stock condition, apart from the 225 PS4 tyres, which have a 1.4% larger circumference.
Remarkable is the noticeable extra power at high speed. I guess the air gets somewhat compressed when scooped in. The stability at those speeds is pretty good.
All in all a satisfying result. 😊