The #2 Audi of Fassler leads at the four hour mark of the 2011 Le Mans 24 Hours after an action packed hour of racing.
The hour started with the good news that Allan McNish was fine after his horrific accident at the Dunlop Curves.
Then a flurry of pit stops followed as the #9 Peugeot of Bourdais came in and Pagenaud took over the third placed car before the #7 Peugeot of Wurz pitted soon after and Davidson took to the wheel of the second placed Peugeot Sport Total car.
Then it was the turn of the race leader as the #2 Audi of Treluyer pitted and he relinquished his position to Fassler.
Before the stop, Treluyer has pulled a substantial gap between himself and the #7 Peugeot of Davidson, and he in turn was being caught by #9 Peugeot of Pagenaud. The gap between Davidson and Pagenaud had been as big as 13 seconds, however this gap had been closed to .2 before another round of pit stops came.
There was drama for the #20 LMP2 Zytek of Amaral whose engine blew at the Dunlop Curves just after he left the pits.
Fassler retook the lead after the #7 and #9 Peugeots pitted for fuel.
The hour saw fleeting punctures for a number of cars. The #77 Porsche 911 of Team Felbermayr shed its tyre belt before Mulsanne corner while the #55 BMW of Muller also suffered from a tyre failure from 3rd in the GTE Pro class.
Third placed Pagenaud then missed his breaking point at Arnage going straight on before being retaking to the track.
The hour ended with the top three cars in LMP1 in the same positions as hour three, with the number #7 of Davidson closing in on Fassler.
In LMP2 the #48 of Team Oreca and #42 of Strakka Racing continued untroubled 1 and 2 with the #41 of Greaves Motorsport taking third in class from the #39 Pecom Racing car.
Jan Magunssen in his #74 Corvette Racing C6 remained head of the GTE Pro class followed by the #56 BMW of Hand. The #51 Ferrari of AF Corse inherited 3rd place after the puncture to the #55 BMW only two laps after it had pitted.
GTE Am class was headed by the #60 Aston Martin of Wainwright which was followed by the #63 of Ried and the #50 of Bornhanuser.
2011 24 Hours of Le Mans standings after four hours:
No.2 – Audi Sport Team Joest – Fassler/Lotterer/Treluyer
No.7 – Peugeot Sport Total – Davidson/Gene/Wurz
No.9 – Team Peugeot Total – Bourdais/Pagenaud/Lamy
No.48 – Team ORECA Matmut – Hallyday/Kraihamer/Premat
No.42 – Strakka Racing – Leventis/Kane/Watts
No.41 – Pecom Racing – Ojjeh/Kimber-Smith/Lombard
No.74 – Corvette Racing – Gavin/Magnussen/Westbrook
No.55 – BMW Motorsport – Hand/Muller/Priaulx
No.51 – AF Corse SRL – Fisichella/Bruni/Vilander
No.60 – Gulf AMR Middle East – Giroux/Goethe/Wainwright
No.63 – Proton Competition – Felbermayr Jr/Felbermayr Sr/Reid
No.50 – Larbre Competition – Bornhauser/Canal/Gardel