Marcus Ericsson says he is excited to tackle the 'adventure' that is Spa-Francorchamps with Sauber's power unit updates as he looks to push on after the Formula 1 summer break.

The Swedish driver feels the Ferrari engine updates have arrived at an ideal time for the Belgian Grand Prix which will put a high demand on the power unit on the long straights and challenging climbing sections.

Last time out Ericsson notched up his third points-scoring finish of the season and is aiming to carry this momentum into Spa to grab consecutive top 10 finishes for the first time in burgeoning his F1 career.

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"In comparison to other circuits, the track is quite long with some interesting corners and long straights," Ericsson said. "Engine power is the crucial factor, which fits well with our engine update. It's one of those tracks which is like an adventure, it goes up and downhill.

"I am really looking forward to driving at Spa-Francorchamps in general and Eau Rouge, Blanchimont and Pouhon in particular. This traditional GP weekend at this historic track is purely about racing, and the fans are really into our sport and passionate about it. The atmosphere is great there."

Ericsson, a former winner at Spa during his GP2 days, also believes the unpredictable weather conditions could become a significant factor to how the race unfolds.

"You never know what is going to happen, one part of the track can be wet and the other can be dry," he explained. "This is also what makes Spa so special."