A new era in Formula One revs up this week with Lando Norris starting his world title defence and Cadillac making their debut at a wide-open Australian Grand Prix that will test the impact of sweeping rule changes.

Lando Norris regained the lead in the drivers' world championship for the first time in six months on Sunday when he steered his McLaren to a commanding victory in a breathless Mexico Grand Prix.

Max Verstappen will be Formula One world champion for the fourth year in a row if he beats Lando Norris in Las Vegas this weekend.