"It's going to be full-on,'' said ITM 400 Auckland ambassador Greg Murphy. "Nailing the setup of the car straight off the plane in the first practice session will be the absolute key to an overall result.
"Qualifying is always vital and getting the high speed balance right is essential because Pukekohe is such a fast and flowing circuit. It's been five years since V8 Supercars have been there and, of course, there have been some significant changes. They will need to get to grips with that very quickly while still learning the new cars.
"On top of that there's 400kms of racing as well. There's not much time between each of the 100km races to make any changes, and real pressure on qualifying because one mistake will make a big difference to your starting spot.
"This is back to a pure sprint format with no pit stops, so strategy doesn't really come into it. Expect some desperate manoeuvres as the pressure to get to the front gets a bit much for some.''
V8 Supercars chief operations officer for events and motorsport Shane Howard said the format changes are the most significant in the history of the sport.
"These changes are purely designed for the teams and drivers to race hard and fight for every position,'' Howard said. "With the new marques joining Ford and Holden in 2013 it was an opportunity for a change across the board while continuing the great traditions of our signature events.''
The V8 Supercars will complete two hours of practice in four 30-minute sessions on Friday April 12, qualifying and Top 10 Shootout ahead of two 100km races on each of Saturday and Sunday.
Currently work is well advanced for the $6.6 million upgrade which will see Pukekohe Park Raceway return to its international status with an improved layout and refurbished spectator facilities including new viewing grandstands and premium viewing areas.