SILVERSTONE, England - Fernando Alonso has called on Ferrari to focus on improving its car to ensure they remain in the title fight this season.The championship-leading driver said the F2012 required upgrades for the team to remain competitive and allow him to stay on top.Alonso became the first driver in 2012 to win two races when he won the European Grand Prix in Valencia and now holds a 20-points lead.ROOM FOR IMPROVEMENTDespite the win, he struggled in qualifying and admitted that without more speed Ferrari would struggle to remain competitive.He said: "We are quite happy now in terms of points because in terms of performance there are a few cars quicker than our car. We have to be honest with ourselves now we know there are a few cars quicker and we need to close the gap in the next few races if we want to fight for the championship."We are in race nine of 20, so at the moment championship points are important, but it is not our main priority. The first thing is to improve the car."Alonso added that he felt happy with the progress the team has made and believed that Silverstone will suit the F2012."The job the team has done in the last three or four months, recovering 1.5 seconds that we were off the pace in Australia, so this is good news," he added. "Looking at the characteristics of the circuit Silverstone should be a bit better for us, suit our car characteristics a bit better."As we saw at the beginning of the year in high speed corners, and at Mugello, the car was performing quite well. Hopefully, we will see a good weekend for us."Stay with Wheels24 for the Formula 1 weekend.