Despite being caught by the likes of Toro Rosso and Williams in the opening two races of the 2012 F1 campaign, Force India is holding fire on a major upgrade in the hope that it can be fully refined ahead of the European rounds.

The Silverstone-based team currently lies sixth - ahead of its rivals - in the constructors' championship after both Paul di Resta and Nico Hulkenberg scored in Malaysia, but the Scot, who rounds out the top ten in the individual standings, reveals that, despite the supposed performance deficit to its direct opposition, no-one is about to prematurely pull the trigger on development parts.

"I think we started this year very strong, [but] they've obviously come up with updates and stuff, [while] we've been relatively neutral," he said of two teams that finished behind Force India in 2011 and, in Williams' case, is rebounding from its worst-ever season, "The [wind] tunnel and the factory are working very hard, [and] we are looking forward to the next couple of races when we get back to Europe.

"We have a good package coming for [the] Mugello [group test on 1-3 May]. We've obviously been working very hard on that, [but] we've taken the decision to leave it there to maximise that. Really, at the moment, we're trying to do the best job we can with the car we have."

In the meantime, the team's focus will shift to the Chinese Grand Prix, and di Resta is optimistic that he and team-mate Nico Hulkenberg can be competitive in the midfield battle.

"Certainly, in Malaysia, we achieved a lot, so there's no reason why we can't do that again," he opined, "Last year here, our car showed more potential than we thought, so I hope that the philosophies that carried on from that. We got into Q3 here with a car that nearly never got into Q2 in Melbourne."

The intra-team battle at Force India is among the more intriguing of 2012, and di Resta admits that he is enjoying the battle with fellow 'young gun' Hulkenberg following the German's promotion from reserve at the end of last season.

"I think it was pretty similar last year with Adrian [Sutil]," he noted, "Obviously, with Nico, I have to have a lot of respect for him. At the moment, we seem to be the closest drivers, against their team-mates, but it's always good to have that competitive nature in the team. You push each other along and drag the best out of each other.

"At the moment, it's work in progress because we're trying to develop the car and, to do that fast, we have to work together to build our team to try to challenge the likes of Williams and Sauber, who are a bit in front of us at the moment. But, having scored the points that we have in the first two grands prix, we're certainly looking forward, hopefully until we get some updates and can put some more performance on, which we're quite confident we can achieve.

"So far, our race performance has showed to be stronger than our qualifying, and the experience I got last year I think paid a lot to the result I got in Malaysia in tricky conditions. Everyone achieved the maximum we could from the package we had. We just need to make sure we're at the top of our game all this season because, to maintain the position, as a driver and as a constructor, that we achieved last year is a mighty challenge. But the vibe in the team is quite high and strong at the moment."