Although Lewis Hamilton is back on top of the Formula One world title race after his victory in Montreal, Whitmarsh is being realistic rather than defeatist given there have been seven different winners of the opening seven races.
Whitmarsh is acutely aware the unpredictability of the sport this year means it is virtually impossible to call how each car will suit a particular track on any given day.
As much as Whitmarsh would love to see his team now take a stranglehold at the European and British grands prix next up on the calendar, he also appreciates it could all easily go awry.
Whitmarsh said: "It is so close and so tricky when you have tyres that can swing any way.
"You see in qualifying it is bloody difficult to get through conserving your tyres.
"You have to make the right engineering and operational decisions every step of the weekend now, and being error-free is massively tough.
"But that is how it should be isn't it? It is great for Formula One.
"I'd love to be walking away with another championship, but it's not going to be that way because this is an abnormal season and I think it is going to be like it to the end.
"Although Lewis is leading the championship, we don't think we are now in cruise mode and we're going to win.
"It could go horribly wrong in the next race and that is how it should be.
"But we're looking forward to some high-speed corners. I'm hoping that will be good for us because our car at the moment has been struggling on traction.
"So the optimist in me says here come Valencia and Silverstone - yes please! But it could be a disaster."
Although the likes of Mercedes' Michael Schumacher, Lotus duo Kimi Raikkonen and Romain Grosjean, along with Sauber's Sergio Perez are in the hunt for a win, Whitmarsh feels the streak of different winners will come to an end in Valencia in 12 days' time.
Whitmarsh said: "It is now seven races and seven winners. We are running out of options.
"I think we are going to have to have a duplicate for the next race."