Jay 37 Report post Posted September 22, 2021 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. 😊 2 BRZ-123 and spikyone reacted to this Share this post Link to post Share on other sites
Lauren 2259 Report post Posted September 23, 2021 I have recorded 150mph on the speedo when on the autobahn, though that translates to 141.25mph on the sat nav GPS. Car was fine though it too a while to get those last few miles per hour. Share this post Link to post Share on other sites
Church 209 Report post Posted September 23, 2021 Twins can go even faster then that, but IIRC top speed was limited in ECU (more so in JDM one, to ~180kmh). I guess, engine & roadnoise at such speed was not exactly enjoyable? As for stability .. it also greatly depends on alignment of suspension. If it's out of whack (especially toe), it may behave differently. Share this post Link to post Share on other sites
MovesWithClouds 5 Report post Posted September 23, 2021 I recall driving behind the Polizei for quite a while at 200km/h . They were in no hurry in their VW T5s or was it T6. Share this post Link to post Share on other sites