Oh, the invisible walls made me think of the TGTT...
This is truly one of my biggest gripes with the game, and PD's thought process in general.
WHY ARE THERE NO STANDING START TIME TRIALS AT THE TOP GEAR TEST TRACK?!?!?! Seriously PD, do you have zero competent people on your entire staff? The ENTIRE reason for the existence of the track in the game is because of it's car culture significance, and they somehow managed to ignore the ONLY POSSIBLE implementation that makes any sense. The track is ONLY used for standing start laps. That's it. Nothing else was necessary or wanted, and yet you managed it to be the only thing you LEFT OUT?
Go choke yourself, PD. There is no way I'll buy another of your products until you prove that you aren't a building full of incompetent dolts.