Global Motorsport Media
Mark Webber will be the first at the wheel of Red Bull's 2012 car, the Adrian Newey-inked RB8.
While Mercedes does not intend to get its new single seater up and running until the second winter test, most top teams will roll out their 2012 contenders at Jerez.
When that Spanish test gets running on 7 February, it will be world champion Sebastian Vettel's Australian teammate - 35-year-old Webber - at the controls, Auto Motor und Sport reports.
The German magazine says Vettel will then take over for the last days of the test.