Tuesday 28 August 2012

Why Audi won at Silverstone

The gap between the winning Audi R18 e-tron quattro and the second placed Toyota TS030 at the Silverstone Six hours was just over 55 seconds at the chequered flag. Both the Audi and Toyota had faultless runs during the six hour race - only a stop/go penalty for the Audi meant that it lost 27 or 28 seconds on that lap.

The following tables are hopefully self-explanatory, if not please let me know.

First for Audi number 1 of André Lotterer, Benoît Tréluyer and Marcel Fässler, which had eight driving stints separated by seven pitstops.

Stint Driver From time To time Laps Notes
1 Lotterer 12:00:00 12:46:21 26 Plus lap to grid and FL
2 Lotterer 12:47:15 13:35:34 27
3 Tréluyer 13:36:53 14:32:07 29 Incl 3 behind SC
4 Tréluyer 14:33:01 15:10:35 21
5 Tréluyer 15:11:11 15:23:43 7
6 Fässler 15:25:00 16:15:02 28
7 Fässler 16:15:56 17:11:01 29 Incl 3 behind SC
8 Lotterer 17:12:18 18:00:39 27 To finish

Note stints four and five, which should really be counted as a single stint, since the pitstop which separated them was the stop/go penalty.

Now here are the details for each pit stop:

Pit Stop Activity Time in pit lane Fuel added
1 Fuel only 54.3s 56.20 litres
2 Fuel and tyres, driver change 1m 18.3s 56.10 litres
3 Fuel only 54.6s 56.09 litres
4 Stop & Go 35.3s
5 Fuel and tyres, driver change 1m 17.1s 56.65 litres
6 Fuel only 54.0s 57.03 litres
7 Fuel and tyres, driver change 1m 17.5s 55.88 litres

For the number 7 Toyota, driven by Alexander Wurz, Kazuki Nakajima and Nicolas Lapierre, here are the same tables. Compare them yourself.

Stint Driver From time To time Laps Notes
1 Wurz 12:00:00 12:39:01 22 Plus lap to grid and FL
2 Wurz 12:40:01 13:20:51 23
3 Nakajima 13:22:19 14:10:36 25 Incl 3 behind SC
4 Nakajima 14:11:37 14:54:18 24
5 Lapierre 14:55:44 15:36:51 23
6 Lapierre 15:37:51 16:18:51 23
7 Wurz 16:20:16 17:04:34 23 Incl 3 behind SC
8 Wurz 17:05:32 17:32:17 15
9 Wurz 17:33:02 18:01:35 16 To finish


Pit Stop Activity Time in pit lane Fuel added
1 Fuel only 59.7s 68.68 litres
2 Fuel and tyres, driver change 1m 27.6s 68.74 litres
3 Fuel only 1m 00.6s 70.12 litres
4 Fuel and tyres, driver change 1m 25.7s 69.84 litres
5 Fuel only 59.6s 66.81 litres
6 Fuel and tyres, driver change 1m 24.2s 65.77 litres
7 Fuel only 58.1s 63.96 litres
8 Fuel only 44.8s 32.45 litres

I'm not going to offer any further comment (here), but the Toyota's faster average lap time and the Audi's faster (and fewer) pitstops provided a tremendous race at Silverstone and promises much for Brazil, Bahrain, Japan and China.

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