Supercars talking to BTCC, NASCAR, IMSA and more about 2021 rules

The Australian series will undergo its next major technical shift ahead of the 2021 season, with hybridisation and the future of the current control chassis key topics in discussions.

In a bid to help secure the future of Supercars, series chief Sean Seamer has been in talks with the likes of NASCAR, IndyCar, IMSA, and the BTCC (pictured above), while Supercars Commission member Brad Jones made an exploratory trek to a DTM round last year.

Discussions with those overseas series could prove pivotal, with Seamer admitting the dialogue will contribute to shaping the technical make-up of the Next Generation Supercar and that ideas could even be 'stolen'.

"We're listening to what everybody's doing," Seamer said.

"Sometimes it's easier to just steal an idea than to try and create a new one. The whole premise of our rise is there's no point reinventing the wheel.

"If someone else has gone through all that work and they've arrived at the best solution you think can work for you, then why rethink the whole process?

"Perhaps where we got caught up is, will they come and race here? Or will we go and race there?

"It's not about that, it's about what information should be shared? What are the things that we should be talking about?

"Because everybody's asking the same questions all over the world, when you get down to it. Where's the next thing going to come from? What's the car going to look like in five years?"

One change almost certainly up for discussion is the control chassis.

The new-for-2019 Mustang - the first two-door car to come into the series under the Gen2 rules - has highlighted difficulties in stretching a coupe over the current chassis, which was originally built for four-door saloons.

The result is a Mustang design that has polarised fans, and adds weight to concerns from General Motors regarding stretching a Camaro body over the current platform and its relatively high roll hoop.

"The key thing about the chassis is it's not about roll hoop height, it's about what's the right chassis to enable us to have as many different marques out there as possible," added Seamer.

"That's the starting point.

"What do we want the grid at Bathurst to look like in 2021? And what do we need to do to get there?

"We're working backwards from that."

Elements of how the championship will look in 2021 could be revealed as soon as this week.

Seamer confirmed over the Bathurst 12 Hour weekend that management and staff are already being briefed, and that some of the ideas could even go public at Wednesday's 2019 season launch.