Single DRS zone in Montreal

Montreal will feature just one DRS detection zone this weekend, instead of the two it had for the 2011 event won by Jenson Button.

The zone will become active after Turn 10 and will begin 600 metres before the braking zone for Turn 13. It has also been shortened by 50 metres since last year and is now a total of 600m long.

It was reduced in length after it was considered too easy to overtake through the section in last year's race.

The second DRS zone on the start-finish line has now been dropped.