Improvements to the Holden Racing Team Commodores are so significant that last year's results do not have any bearing on how the team will fare in 2015, Garth Tander believes.
With his home race next on the V8 Supercars calendar, West Australian Tander sits fourth in the points after finishing all six 2015 Championship races in the top 10, including third and fourth in the big points-paying Sunday races at the Clipsal 500 and Tasmania SuperSprint.
Such a positive start to the year has been welcomed - and now Tander looks to turn around his form at his home race at Barbagallo Raceway, where he suffered from a tyre puncture and was unable to crack the top 10 in 2014's three races.
"The car we've got this year is very different to the car we had last year," he told v8supercars.com.au.
"You don't really go to any event now with any pre-conceived ideas based on how we ran there the year previously, really, until the second half of the year where we started improving the car."
The number one priority for the Commodore VF for Perth - more grip.
"The balance of the car is not too bad, just overall, need more grip," Tander said.
"All the little one per centers that add up and make a difference, we'll make sure we work on those and have a better package for WA."
Tander achieved a clean sweep at the West Australian circuit in his Championship year, 2007, which he rates one of his best weekends in a V8 Supercar. But otherwise, results on his home turf have gone begging.
"Obviously I look forward to the event - I love racing there, I really enjoy the track, in a Supercar it's quite fun," he said.
"It'll be a challenging weekend with the tyre allocation, but [it's the] same for everyone and if we can have another strong weekend that will be great.
"We just need to take a little step from where we are right now to the front guys but ... we'll be working pretty hard, so looking forward to it."