Norbert Haug says the biggest worry for the next 2 races, as Spa is next to Monza, is the engines:
In fact, Mercedes-Benz motorsport boss Norbert Haug thinks that the challenge of getting through the next two races with one power unit is the greatest the manufacturers have faced since the V8s raced for the first time last year.
He said: "At around 80 percent, Monza has the highest full-throttle proportion per lap of all Formula One racetracks. However, the following race (Spa) will challenge the engines even more.
"As scheduled, we will start in Monza with a new engine in both cars, which, according to the rules, is designed to be used in Spa as well.
"The combination of these two circuits is the highest expected strain for an engine so far since the new V8 engine generation has been introduced last year."
