Adrian Sutil thinks Spa and Monza will be Force India's best circuits of the year

Adrian Sutil believes that the next two rounds of the Formula 1 World Championship in at Spa and Monza will be the strongest of the year for the Force India team

The 28-year-old German qualified a season's best eighth in Germany and then repeated it in Hungary last weekend before seeing his team-mate Paul di Resta finish seventh in the race.

Sutil thinks that the strong straightline speed afforded by the VJM04's aerodynamic package and its Mercedes engines will make both he and di Resta forces to be reckoned with in Belgium and Italy.

When asked if he was pleased with the momentum currently with Force India after a cagey start to the 2011 season, Sutil said: "Absolutely. It's important for us to see this.

"We planned for a little bit of a difficult start to the season because we changed a few things [on the car] during the winter, and we're aiming for a strong finish. At the moment we're on the right way. We're aiming to catch a lot of points still. Looking to Spa and Monza, these are tracks that favour us. It could get even better.

"It's a good sign that our downforce is improving and the general stability [of the car] too. This will help us at Spa. We are still one of the fastest cars in a straight line. The switch of the DRS is very good, so it should be even better at Spa and Monza than at other races."

Force India currently lies seventh in the Constructors' World Championship, nine points behind Sauber and four ahead of Toro Rosso. Sutil, however, believes that racing against Mercedes - fourth in the standings - should be the aim for the rest of the season.

"They [Mercedes] are always a hard competitor and are difficult to beat, but we showed it was possible at the Nurburging and again, and we always look towards the front," he added.

"But we should not forget about Sauber either. They have a good race pace. It's quite a good grid and nothing really is different to the few last races [in terms of grid order]."