Simona de Silvestro heads into next week's Red Rooster Sydney Super Sprint encouraged following a successful rookie day test at Winton.
The Nissan Motorsport driver spent her third and final rookie day working on improving the overall Altima package for the Braeside operation.
Supercars rookies are awarded three extra test days on top of the team's test day allocation to help acclimatise to the series.
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While the test was important for the Swiss driver's continual transition to Supercars, the day provided a valuable chance for Nissan Motorsport to gather data after losing one of its test days due to a rules breach.
Nissan Motorsport team-mate Rick Kelly was on hand to oversee De Silvestro's progress and cut laps in the #78 Harvey Norman backed Altima.
“There were a lot of new things in the car and stuff that we have tried in race weekends but we were not really sure if they were really positive,” said De Silvestro.
“We got the chance to do back-to-backs on that which was really good for me and the team.
“The team has worked hard but I think it has been pretty productive.
“It was good to have Rick (Kelly) here to do a few laps.
“For him it is a little strange to sit in somebody else's car but he found a few things (with the car) that were not quite right.
“These are things that need to be cleaned out a little bit. It is good to have someone with more experience try it out.”
De Silvestro will continue her Supercars campaign at Sydney Motorsport Park next weekend.
VIDEO: De Silvestro reviews Winton rookie day test