I know why the McLaren looks slow.
It's the beards! - http://news.bbc.co.uk/sport1/hi/motorsport/formula_one/9396283.stm
Beards are suicide in F1. Has there ever been a successful bearded F1 driver ever? I think not!
. Driver Team Best Lap Last lap Diff Laps
1 R. Barrichello Williams 1:19.832 1:43.391 103
2 K. Kobayashi Sauber 1:20.601 1:26.982 +0.769 86
3 F. Alonso Ferrari 1:21.074 1:36.964 +1.242 115
4 S. Buemi Toro Rosso 1:21.213 1:45.767 +1.381 90
5 B. Senna Renault 1:21.400 1:23.171 +1.568 68
6 H. Kovalainen Lotus 1:21.632 1:21.632 +1.8 43
7 N. Rosberg Mercedes 1:22.103 1:43.058 +2.271 45
8 S. Vettel Red Bull 1:22.222 1:23.117 +2.39 90
9 J. Button McLaren 1:22.278 1:29.743 +2.446 70
10 J. D'Ambrosio Virgin 1:22.985 1:28.240 +3.153 45
11 P. di Resta Force India 1:23.111 1:25.032 +3.279 99
Force India said:Problem for Paul was suspected front suspension failure. Total mileage more than 1,000km - good debut and got a strong direction for Barca