LONDON, March 2 : New cars, new power and new teams for a new era - Formula One starts afresh in Australia this week with a heady mix of excitement, uncertainty and apprehension. Never shy of underselling itself, the high-octane sport appears on the money in billing the 2026 season as the biggest shake-up it has ever seen. For the first time in decades the chassis and power unit regulations have changed at the same time, a massive challenge even for the biggest teams, with near parity between