Driving a car with a full complement of airbags with a helmet on may do more harm than good. The helmet is there to protect your head, but the airbags are there for the same purpose. At the same time adding weight to your head (helmet) increases the chance of a neck/spine injury in a crash. Race cars don't have airbags, so the helmet becomes mandatory. If airbags deployment is too slow for the speeds being driven, then it is probably best to disable them and wear a helmet. The last thing you want to have happen is smack your (helmeted?) head into the steering wheel and then have the airbag go off.
In the video it appears to me that the Giulia driver handles the turns better than the Porsche driver, but that the Porsche is out accelerating the Giulia in the straights. I agree with BostonDMD, the Giulia driver appears to be more skilled. This implies that if the drivers were of equal skill Giulia would not have been able to keep up.
If you pull up the video of Giulia breaking the sedan record on the track, you will note the car really being driven like it was stolen. The car is getting squirrelly exiting most turns, sometimes needing a lot of very skillful correction to keep the car on the track. The car also appears to accelerate unbelievably quickly, even in comparison with videos of cars making significantly faster runs. Perhaps these are both the same issue and coupled with the throttle response lag that has been discussed under other threads? That is, if there is throttle response lag, it is difficult to apply the right amount of throttle when exiting a turn; the driver in the record run is getting too little followed by too much power.
