British Touring Car Championship boss Alan Gow has suggested Supercars should focus on entertainment not "engineering masturbation" when the series creates its new set of rules.
The Australian touring car category is at a crossroads in terms of its technical regulations, with Gen3 rules due ahead of the 2022 season.
Significant cost reduction has long been tipped to play a key role in shaping the rules, something that will be even more important as teams face a struggling post-coronavirus economy.
There are also question marks over what style of car the regulations should cater for as the Australian motoring landscape continues to evolve away from four-door sedans, as well as considering what role manufacturers should play once Holden is out of the picture after 2021.
The BTCC could provide a road map for Supercars, as the category is thriving under strict technical regulations that include a significant amount of control components - including a control engine option.
Asked on the latest episode of the V8 Sleuth podcast if Supercars could learn from the BTCC, Gow called on the Australian series to shift away from technical complexity.
"We went through this after the Super Touring era, when that finished we all had hangovers from that," said Gow, who is also president of the FIA's Touring Car Commission.
"There were great learnings from the Super Touring era of how not to waste money and how to really appreciate what, actually, the viewers and the spectators want to see.
"We looked at things like the engine - no one on the side of the spectator banks cares about the internal workings of the engine.
"No one cares what the gearbox is like. No one cares what sort of diff a car has. No one cares what the electronics are like.
"No one cares how much telemetry there is between the cars and the pits - or if there is any.
"All the spectator wants to see is good, hard, close racing.
"If you can deliver that, whilst stripping away all the unnecessary costs, then you've found the formula.
"If you want to provide entertaining motorsport, then take away all the engineering masturbation exercise and just put on entertaining motorsport.
"That's what we do - the BTCC is not a technological exercise, it is entertaining sport."
The end goal, says Gow, is to have regulations that make it impossible for one team to out-spend another.
"The cost capping that we do in the BTCC is really strict," he said.
"With testing restrictions [and] the technical regulations that we've got, if a team had three times as much money as another team, they wouldn't do any better."
The idea of making a BTCC-style spec engine available in Supercars has been floated before, team owner Ryan Walkinshaw suggesting earlier this year that it might help entice new manufacturers not willing to commit to a costly V8 development programme.
According to Gow there's no reason why a TOCA engine equivalent wouldn't work.
"I think all your engines are pretty much equal now are anyway, aren't they?" he said.
"So what's the difference between having one engine manufacturer supplying the whole field? Why wouldn't it work?"