For the fourth year running, Atlas F1 is going to keep an eye on the battle between teammates throughout the season with a simple measurement: we compare the qualifying times of each driver against his teammate's result. After every Grand Prix, we will show how teammates have fared up against each other, and where they are overall since the beginning of the season. At the end of the season, the World Champion of Qualifying Differentials will be elected - the driver who was most beaten by his teammates, in seconds. Only those who participate in at least 15 of the 17 rounds are eligible for the coveted crown; and for those who made the efforts and participated in all 17 races, the best and worst result will be scrapped.

With twelve qualifying sessions completed for 2001, the differentials are on a roll! Let's see which drivers deserve bragging rights.

Germany Notables

• Setting the records straight. Juan Pablo Montoya was the only one to improve his previous best qualifying result - setting his first pole position in Formula One.

• Zonta. Ricardo Zonta spent much of last year at the top of the Qualifying Differentials table, being vastly outqualified by then-teammate Jacques Villeneuve. His entry to the charts this year were no different, harsh as it may be to judge a driver after only two qualifying sessions. The young Brazilian is currently well well behind teammate Jarno Trulli and it remains to be seen if he gets more chances to close that gap down.

• Changes since Britain: none whatsoever.