Formula One World Championship: Marcus Ericsson (SWE) Sauber walks the track with engineers and Alex Elgh at Formula One World Championship, Rd13, Singapore Grand Prix, Preparations, Marina Bay Street Circuit, Singapore, Thursday 17 September 2015.
Marcus Ericsson (SWE) Sauber walks the track with engineers and Alex Elgh at Formula One World Championship, Rd13, Singapore Grand Prix, Preparations, Marina Bay Street Circuit, Singapore, Thursday 17 September 2015.