Drivers squinted and others sought shade as they gathered for the official launch of the production car event at Mount Panorama.

"There are campers here already [for the 6 Hour] and if the weather stays this way, they won't be using much firewood," mayor Graeme Hanger said.

Thousands of visitors are expected in Bathurst over this Easter weekend to see the action on the Mount, which will culminate in the running of the 6 Hour itself from 11.30am on Sunday.

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Bathurst 6 Hour event director James O'Brien is happy with the field of 45 cars in the main race.

"With the number of cars in the field, somewhere in the mid-40s is an ideal number from a racing perspective," he said.

"It depends on how many safety cars we see."

There will be just under 300 cars in total taking part over the weekend, including all support categories, he said.

As well, there will be 300 officials, almost 1200 crew among all the teams and Mr O'Brien said "we generally draw about 6000 people a day to the event".

"That's the attendance figure, so it includes people in the competition and spectators," he said.

It's a smaller event compared to the Bathurst 12 Hour or the gargantuan Bathurst 1000, he said, but "it's got a nice feel".

The race will be broadcast live on Fox Sports 506 from 11.15am on Sunday - the second year running the Bathurst 6 Hour has had live coverage, Mr O'Brien said.

Bathurst 6 Hour media manager Richard Craill said a pit café in suites seven to 13 in the Mount Panorama pit complex will be open to all those attending the event.

"As well as grabbing some great food and drink, you can use the balcony or the rooftop to view the action," he said.

"There's big screens at the top of the Mountain and, as long as you have a ticket, you can access both the top and bottom of the circuit throughout the event."