Marussia new boy Luiz Razia aware he and Max Chilton have some 'tough' times ahead

Marussia's newly-unveiled race driver Luiz Razia has admitted he and Max Chilton are facing a "tough" baptism as rookie team-mates in Formula 1 this year - but is sure they will adapt to the top level quickly.

Razia's first day in the new Marussia was ultimately curtailed just before lunchtime when an engine problem ground his MR02 to a halt on the pitstraight. Up until then the Brazilian had completed 31 laps, with a best time of 1:23.537, and says his early acclimatisation to the car and its functions had gone well. "The morning was pretty well. We started to test some stuff and I started to get used to the functions on the steering and some tyre and baseline evaluations," Razia explained. "It was going quite good and then eventually we had a problem with the engine and we had to stop. That caused a lot of problems and we were quite late and couldn't get back on the track unfortunately. "But tomorrow will be fine."