Table:
text: 2007 British Grand Prix
Race
Race
Driver Constructor_ Laps Time_Retired Grid
Kimi Räikkönen Ferrari 59 1:21:43.074 2
Fernando Alonso McLaren - Mercedes 59 +2.459 3
Lewis Hamilton McLaren - Mercedes 59 +39.373 1
Robert Kubica BMW Sauber 59 +53.319 5
Felipe Massa Ferrari 59 +54.063 4
Nick Heidfeld BMW Sauber 59 +56.336 9
Heikki Kovalainen Renault 58 +1 lap 7
Giancarlo Fisichella Renault 58 +1 lap 8
Rubens Barrichello Honda 58 +1 lap 14
Jenson Button Honda 58 +1 lap 18
David Coulthard Red Bull - Renault 58 +1 lap 12
Nico Rosberg Williams - Toyota 58 +1 lap 17
Alexander Wurz Williams - Toyota 58 +1 lap 13

Question: What was Jenson Button's constructor at the 2007 British Grand Prix?