A stormy weekend of weather has been forecast for Montreal's Canadian Grand Prix.
That is one more variable thrown in the face of Red Bull's current dominance, alongside expected high tyre degradation, two 'DRS' overtaking zones for the first time and the fact that McLaren's Lewis Hamilton dominated a year ago.
"I've always got on really well with the track, the layout seems to suit my driving style," said the Briton, referring to the Circuit Gilles Villeneuve.
"We have a great engine, the best KERS system in the sport and excellent traction out of slow corners. I'll be looking for a strong result on Sunday," added Hamilton.
As in Canada last year, 64-year-old former double world champion Emerson Fittipaldi will be the driver representative in the stewards' room.