I had a similar experience when driving my wife's 2017 GT Premium. Only difference is I kept the vehicle in "Normal" (I only use "Normal" and "Snow/Rain", never messing with "Sport" and "Track" as I keep steering in "Sport" mode) and I backed off the throttle and braked when I decided to turn off the US HWY. At that time, I had more than a dozen car lengths on him and a lot more top end. I may have exceeded the speed limit by a wee amount. It is a horrible daily driver but a lot of fun for the occasional drive. It is much better car now than the OEM Pirelli P Zeros have been replaced with Michelin Pilot Sports. On the rare occasions I commute with it, I remember why my daily driver is a large sedan.