[pwd72s]

Originally Posted by Porschist

Well, Jack certainly knows Willows like the back of his hands but Randy Pobst is not a stranger to that circuit either. Randy lapped a 918 in 1.23.54.
Jack is not far from that time, on less rubber and around 300hp.

If we assume Randy and Jack are equivalent hands behind the wheel (+/- a second?), Black Beauty II kicks ass, irrespective of driver's skill.

In the end, lapping a curvy track means pushing mass around corners against the grip of tires. There isn't much else to it. Electronics do not change physics.
1000 pounds of Mass lost are worth more than any electronic kit or, if you are not at Le Mans, 900 horsepower.

The comparison between Olsen's car and a 918 shows how cars have not really progressed. The evolution has been primarily in tires and contact patches.
The manufacturers "ate" tire progress to compensate for the obesity affecting their lineups. Minus a few seconds each year, baked in to show the new model was worth your cash because it was a bit faster than the last one. It's all engineered.
Put Jack's tires on the 918 and it'll careen into the desert at the first corner.
Put the 918 rims and tires on Jack's car, plus a booster, and Black Beauty would walk away.

A plank with four wheels is a plank with four wheels.

Or, as a Michelin engineer once said, 90% of a car is its tires.

Can't argue with any of this...