Board Thread:Game Discussion/@comment-31526827-20170401233025/@comment-26808586-20170401234042

Maybe it's because the upgraded speed and acceleration specs are too much for the upgraded grip and braking specs to handle. I think the game does load the car and some "game accepted" speed before it hands the wheel to you for your run. My theory is that: the car's tyres can't handle the newly "found" speed.

When people still used to run the McLaren Generations Indy Endurance, I remember people who fully upgraded the P1 GTR said that they can't go flat out in the turns anymore, while I, at around PR 90/96, (I have since fully upgraded to run Exclusive Series) could easily control the car while flat out through the turns.

Or sometimes it's just a game connection or server issue, perhaps.