Championship leader Sebastian Vettel determined that 46 points lead not secure for his fourth consecutive title journey.
Also the German cautioned that three world champion will fight for the title right until the end of the season.
After the Belgium Grand Prix, triple time world champion 46-point lead over Fernando Alonso and 12 points lead over the Mercedes’ Lewis Hamilton.
“I have proven myself in 2010 and 2012 how quickly you can come back,” Vettel told Sky Sports in an interview.
“In that regard we will just try to continue step by step and not get carried away with anything else and just focus on the job.”
“I’m not completely aware of what’s going on behind because I’m not a fan of looking at the scoreboard every minute,” he said.
“But Fernando has proven to be very, very consistent. Kimi, even though he didn’t have the best race [in Belgium] and had to retire, has always been in the points in every single race. Lewis proved to have a very strong package together with Mercedes. And in fairness, so does Nico [Rosberg]. He didn’t have the best start to the season so he’s lacking a little bit of points in that regard.”
“At the end of the day I keep it very simple, on purpose as well. There are a lot of points still out there to get, and definitely more points than my lead.”
“Fernando managed to do it last year so nothing’s impossible! 25 points for a victory, a couple of DNFs and somebody puts a run together and you can be on the back foot again,” Horner said.
“We’ve got ourselves in to a strong position but our focus is very much on moving on from Spa to Monza and then from there on to the international races, so we’ll just take it one race at a time.”