Renault continued its development work at the famous Monza circuit on Wednesday where they conducted further preparations for the forthcoming Italian Grand Prix. Monza requires the teams to develop a specific aerodynamic package, used only for this race, which demands very low levels of drag and downforce to be competitive on the long straights. This week's test is therefore important in order to validate these components, and conduct set-up work with the car in this unusual configuration.

After completing the first day of this week's test running chassis R27-01 fitted with the 2008-specification standard ECU, the team's first full track test with this new component, the ING Renault F1 Team reverted to a more traditional programme for day two of the test.

At the wheel of chassis R27-06 in standard 2007 configuration, the Finn focused on set-up work while using the low downforce aero package. The team focused on finding a driveable baseline balance, and on comparisons between the two types of Bridgestone Potenza tyre that will be available at this race, the soft and medium compounds from the 2007 range.

Heikki completed the programme without any delays, completing a total of 76 laps and 438 km, which will provide a solid basis when he begins working in free practice next Friday. His best lap of the day was 1'24.093, which put him P6 on the final timesheets.