Car enthusiasts Denis Gregory, John Davis invited to memorial service of Formula 1's Ron Tauranac

Mr Tauranac died in mid-july at his home on the Sunshine Coast but because of covid restrictions his funeral was restricted to family only.

The NSW government has given special permission for 100 invited people to attend the memorial on Wednesday at Sydney Motorsport Park.

Mr Tauranac was a guest at the Gnoo Blas Classic car show four years ago and was also here for a council and car club tribute service for Sir Jack Brabham who died in May 2014.

Sir Jack started his road racing career at Gnoo Blas in January 1953.

Gnoo Blas Classic Car Club president Denis Gregory and former mayor John Davis have been invited to attend Wednesday's memorial service that will be streamed world-wide.

Mr Gregory said Ron Tauranac was one of motor sport's most distinguished, yet unassuming, characters.

He said he co-founded Motor Racing Developments with Sir Jack to build production racing cars under the Brabham name.

Sir Jack is the only driver to be crowned world champion in a car in his own name and he had Ron Tauranac to thank for that.

Sir Jack won F1 world championships in 1966 in a Brabham car and again the following season a Brabham driven by New Zealander Denny Hulme again won a world championship.

Mr Tauranac also worked with Brabham at the Indianapolis 500.

Following Jack Brabham's retirement in 1970, Mr Tauranac took over the team and ran it until selling the operation in 1972 to Bernie Ecclestone.

He later worked with several other F1 teams including Arrow.

He also reintroduced his Ralt marque, building championship-winning customer chassis in a variety of open-wheel classes in the 1970s and '80s, including Formula Atlantic and Super Vee.

Mr Gregory said it was an honour to be invited to the memorial service for such an unassuming motor sport great.

"His family said he was active, healthy and independent until the end," Mr Gregory said,

"His daughter said he felt the need to constantly achieve something and always had the next goal in mind. He was never one to rest on his laurels with his sharp engineering mind always engaged.

"When asked recently what the best car he designed was he responded simply 'the next one'."

Mr Gregory said the family said he led an extraordinary life.

"They were incredibly proud of what he had achieved and were deeply saddened by his loss," he said.