Teams on edge as F1 reset faces litmus test in Australia

MELBOURNE, March 4 : Formula One's new era starts at this weekend's season-opening Australian Grand Prix, where teams will leap into the unknown and grapple with sweeping technical changes under race conditions for the first time.

F1 has simultaneously overhauled chassis and power unit regulations for the first time in decades, posing a challenge for drivers and engineers alike while raising concerns about the quality of racing.

With near-parity between electrical and combustion engines and cars running on 100 per cent advanced sustainable fuel, drivers gained some insight into the changes during winter testing. But all are in the dark about how the reset will play out when going wheel-to-wheel on race-day.

"I'm certainly more comfortable now than I was a couple of months ago, with how to drive these cars and how to try and get the most out of them," McLaren's Oscar Piastri told reporters on Wednesday.

"But I think there's still the saying of, 'You don't know what you don't know'."

Australian Piastri said McLaren thought they had the cars worked out two months ago, only to find they had "a whole bunch of stuff" they did not understand during winter testing.

With more power generated by electricity than last year's engines, there is more emphasis on drivers needing to be tactical with energy deployment and regeneration.

The old drag reduction system has been replaced by a new overtake mode giving extra power for overtaking.

Four-times world champion Max Verstappen described the changes as "like Formula E on steroids" and "anti-racing".

Formula One chief executive Stefano Domenicali defended them and assured fans there will still be plenty of thrills.

'UNNATURAL' DRIVING

The changes may have different effects at different circuits,