Marussia Virgin head to F1 season finale at Sao Paulo targeting a positive end to a relatively disappointing 2011 season during this weekend's Brazilian GP.

The sense of optimism which surrounded the team at the beginning of the season unfortunately never translated into any eye catching results and instead the team have seemed to move backwards and go into the season finale behind both Lotus and HRT once again.

Despite this, both Timo Glock and Jerome d'Ambrosio arrive at Brazil with a positive outlook as they both intend to produce the right result which will hopefully give the team a springboard in momentum for 2012.

Glock is looking forward to the variety that the Interlagos circuit offers with a range demanding high speed corners along with the twisty middle sector of the circuit - resulting in finding a happy medium in terms of car balance imperative.

"I really enjoy racing at the Interlagos circuit in S?o Paulo," he said. "Even though it's not a very long lap, it is one of the most demanding challenges on the F1 calendar, with some great corners - for example turn six, an uphill double right hander, which is fast and blind.

"The car has to be stable through the twisty middle section as well as being quick on the straights, so a good balance will be key."

Team mate d'Ambrosio although a rookie does arrive at this weekend's race with previous experience of the Interlagos circuit following his Friday running here last season. The Belgian seems to be well informed of the characteristics which surround the Brazilian race and predicts the unpredictable weather conditions to throw a spanner in the works.

"The last race of the season takes place at the fantastic track Interlagos," he said. "The last section, the stadium, is really impressive and great to drive, as well as the Senna S and turns six and seven. As with Abu Dhabi, it's another anti-clockwise track, making it a total of five in the season.

"The Brazilian Grand Prix is also known for its unpredictable weather - I always remember the Qualifying session in 2009 where it looked like it was never going to stop raining! So you never know what to expect here, which makes it an even more exciting weekend."

Team principal and director of racing, John Booth like his drivers predicts an exciting and challenging weekend. Booth also concedes his team's reliability record within the last few races has been less than satisfactory. The Englishman hopes his team and himself can rectify this during this weekend as they look to next season.

"I always look forward to the Brazilian Grand Prix," he said. "It has provided some excellent racing in both wet and dry conditions in the last few years. It's a unique track: the anti-clockwise layout, the bumpy surface and the famous Senna S make it a true test of driver skill and a real challenge for the drivers.

"This is of course the final race in what has been a tough but eventful year for the team. We've put an awful lot in place for the future however and whilst it's always sad to end one season, I'm already looking forward to the next.

"Reliability has been the watchword of our 2011 campaign but, disappointingly, we have experienced a couple of problems in the last two races which have prevented us achieving the two car finish that we have been consistently racking up through the year. I hope we can reverse that situation and end 2011 on a high by getting both cars to the finish next weekend."

by Simon Evans