The Sauber F1 team will evaluate a modified rear wing at the 2013 F1 Spanish Grand Prix next weekend.

The Swiss-based outfit has had a difficult start to the new season and to date Nico Hulkenberg's eighth place finish in Malaysia and his tenth place in China are the only times the squad has scored points.

Furthermore after another tough race in Bahrain last time out, Sauber will take another batch of aero updates to the fifth round in the 2013 F1 World Championship, including that new rear wing.

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Speaking ahead of the event, Sauber's head of track engineering, Tom McCullough, added that the goal is to get both Hulkenberg and Esteban Gutierrez in the top-ten on race-day.

"We have some further aero updates, including a modified rear wing, and we will be evaluating these during Friday practice. Qualifying is particularly important here as overtaking can be difficult in the race. Our target for the race is to finish with both cars in the points," he confirmed.

Hulkenberg meanwhile is looking forward to the event at the Circuit de Catalunya. However, after a 'difficult' and 'frustrating' time in Bahrain [see separate story], he isn't making any predictions.

"Barcelona is a nice city where you can get a real feel for the Spanish life style. We know the Circuit de Catalunya well, of course, from the winter tests. However, since winter testing many things have changed, and also the climate will be different from the one we had in February, which you have to take into consideration," he continued.

"The circuit is diverse. The first two sectors are fast with fast, long corners, which require good down force and a well-balanced car, whereas the third sector is quite technical. The aero updates we bring to this race will show how well our car is suited to this track."