Supercars drivers will vie for the championship title in an elimination finals series in one of the biggest shake-ups to the category's format in years.

The change is part of a significant expansion to the calendar in 2025, with 10 more races boosting the roster to 34 races across 13 rounds.

The addition of the finals series will keep fans engaged until the very last lap, said Supercars chief executive Shane Howard.

"Our fans wanted more excitement, more unpredictability, and a true test to find the best champion," he said.

"The finals series will do just that."

The season will be split into three phases, with eight rounds of sprints to kick it off, before endurance races at The Bend in South Australia and the centrepiece Bathurst 1000, and ending with the elimination series to decide the title.

Finals will be held across the last three rounds of the season at the Gold Coast, Melbourne's Sandown and Adelaide.

Seven-time champion and Triple Eight team boss Jamie Whincup says the change was crucial to keep the sport relevant.

"From a team owner's point of view, we've been pushing Supercars to make a change, to get out there and have a crack and make change," Whincup said on Wednesday.

"They've certainly done that. We expected a small swing, but they've made a massive swing.

"All the team owners were united that this is a great thing for the sport. We need change and this is the best way to do it."

Ten finalists will qualify for the Gold Coast, including the winners of the Sprint Cup and Enduro Cup awarded earlier in the season, with seven drivers progressing to Sandown and four to the decider in the South Australian capital.

Points will reset between each round of finals, ensuring there are no dead rubbers.

Non-finalists will continue to race during the finals series.

"The emphasis was on improving the racing product and giving drivers the opportunity to always attack without an external factor preventing them from being aggressive," Howard said.

Wednesday's announcement at Mount Panorama comes after automotive giant Toyota — Australia's most popular car brand — revealed it will join Supercars in 2026.

With Supercars' existing TV rights deal with Fox Sports and the Seven Network expiring at the end of 2025, the recent overhaul is hoped to boost the category's attractiveness to broadcasters.

Sprint cup

February 21-23: Sydney SuperNight, Sydney Motorsport Park, NSW

March 13-16: Melbourne, Formula 1 Australian Grand Prix, VIC

April 11-13: Taupo, Taupo International Motorsport Park, NZ

May 9-11: Tasmania, Symmons Plains, TAS

June 6-8: Perth, Wanneroo Raceway, WA

June 20-22: Darwin Triple Crown, Hidden Valley, NT

July 11-13: Townsville, Reid Park, QLD

August 8-10: Ipswich, Queensland Raceway, QLD

Endurance cup

September 12-14: Tailem Bend Endurance Race, The Bend Motorsport Park, SA

October 9-12: Bathurst 1000, Mount Panorama, NSW

Finals series

October 24-26: Gold Coast, Surfers Paradise, QLD

November 14-16: Sandown, Melbourne, VIC

November 27-30: Adelaide, East Parklands, SA.

AAP