With its prominent location alongside Murray's Corner, the museum is a popular stop for race fans who visit Mount Panorama.

This year has been no different, with museum manager Brad Owen reporting that it had been a very busy couple of days already.

"It's been as busy as last year. We are really happy with the numbers and it's only the second day," he said on Friday.

One of the most popular attractions has been a special exhibition on the 40th anniversary of the introduction of Racecam at Mount Panorama and the career of Peter Williamson, who was the first driver to carry an in-car camera system.

READ ALSO: Peter Williamson inducted into Legends Lane

Racecam technology came to Bathurst in 1979 and became a staple of the broadcast in the decades that followed.

Mr Owen said the exhibition had been very popular so far and it had even been visited by Williamson's family.

Also getting a lot of attention is the new immersive room, which features three enormous screens playing an 11-minute video on a loop.

The room had its first major workout on Father's Day and now the most dedicated of race fans are getting their turn.

They love going into the room and reliving some of the Bathurst 1000's greatest moments from all the different generations.

"People grow up on Bathurst watching the race on TV and the museum really is the place to highlight that history," Mr Owen said.

Patrons have come to the museum from all over the country and Mr Owen said some of them pay a visit year after year just to see what's changed.

"We've had about 15 cars changed over since this time last year," he said.

READ ALSO: Chaz Mostert's crashed Falcon added to National Motor Racing Museum collection

When it comes to attendance, the only real break museum staff get is when the the headliners of the race meeting, the Supercars, are running around the circuit.

"It is quieter when the Supercars are on track and then when they're finished we get busy again," Mr Owen said.

Outside of those sessions, fans come in to see the exhibitions or pick up souvenirs from the gift shop.

The NMRM will be operating with extended hours over the next few days.

People are invited to visit between 8am and 6pm on Saturday, 8am to 5pm on Sunday and 8am to 4.30pm on Monday.