We may have extended our lead in both Championships at the Sochi Autodrom, but there's still a long way to go in this 2018 Formula One season and you never know what will happen next.
"In the end we left Sochi with a bigger lead in both Championships," Toto explained. "But we know that doesn't mean anything because our fight with Ferrari is far from being over.
"We can take nothing for granted and we will stay at maximum attack on every front in the next races.
"The battle with Ferrari remains extremely close, as was underlined by Sebastian's pace on Sunday and the pressure he put us under.
"Lewis was in Brackley this week and is hungry, focussed and completely determined to succeed: it has been great to see the power he has brought to this Championship, and how he has taken it to the next level since the summer break.
"Suzuka will be another challenging weekend for us - we will need the very best from our team, our car and our drivers to come out on top.
"It's a track that shows some similarities to Silverstone, where we didn't perform as strongly this year as we had done in previous seasons.
"So, we're going to Japan knowing that we all have to be at our very best if we want to claim the win."