Carlos from Spain:
ISUK:

I've no doubt McLaren will iron out their handling issues and rather suspect that is why every owner is apparently now being forced to take the IRIS option in order that McLaren can download software upgrades directly to the early cars. I think they are going to need a few of those fairly quickly based upon this test

 I doubt a software download can make the car more exiting, engaging, and overal fun to drive though, IMO the biggest problem with this car that I'm reading from all the tests, since that is essential in this class as these cars are more of an "emotional" purchase and in the end, after all the paper figures and specs, it must appeal to the emotional side of the brain.

 Correct.. This is a traction issue combined with the brake steer. NO LSD was criminal...

They can massage it with stiffer springs and different electronics but the transmission is the issue in my opinion (and first hand experience with the car).