Newey pitched 'slippery kerb' as F1 runoff abuse deterrent to FIA

Track limits were a talking point in last weekend's United States Grand Prix, with Max Verstappen suffering a suspension failure after clipping a kerb during qualifying.

New kerbs were also installed at Austin to prevent a repeat of 2017's race, in which Verstappen lost a podium finish to a penalty earned for passing Ferrari's Kimi Raikkonen by cutting Turn 17.

Whiting said Newey's suggestion was not feasible.

"It [kerbs] works better on some circuits than it does others," said Whiting.

"At the Red Bull Ring we had to put the additional kerbs behind, because the first time they were installed there were suspension failures.

"Basically the cars couldn't cope with the kerbs.

"You can see the problem there, some cars were OK, others weren't but they had to redesign their cars to make sure that they can cope with the things.

"This is one of the fundamental arguments that I have sometimes. They want the kerbs to be designed to suit the cars and I say, 'No, that's not the way it is, you have to design the cars to suit the circuits'.

"It's a complicated subject which is not simple to find a solution to.

"Adrian Newey came to me recently and suggested we could have some sort of slippery kerb, and I said, 'That's great Adrian, but if you can find a kerb that deters all kinds of car and is suitable for motorbikes, please tell me about it, because we can't think of one at the moment'."

Whiting said the main flaw was that specific solutions at circuits could impact on other series.

"That's the biggest problem, to be able to let track owners and operators be able to use their circuits all year long without having to do too much work," he added.

"The Red Bull Ring, for example, some of the kerbs they put down they take out when they have motorcycle activity.

"It just depends how the circuits need to operate. It would be a relatively straightforward thing to ask them to install kerbs which are suitable for all types of car, but then they would probably be a little bit too bad for F1 cars.

"I know that's not our problem, but MotoGP want to run on some F1 circuits, World Superbikes do, and they need kerbs which don't cause them too much difficulty.

"This is when we came up with the double kerb, as we call it, which is on the exit of Turns 9 and 19 [in Austin], and we've introduced it in a number of tracks now.

"We have kerbs that are just about good enough for F1 cars - they're not enough to deter Porsche Supercup for example - but they're OK for bikes, and that's about as good a compromise as we're going to get where you have a circuit that wants F1 and MotoGP."