Di Resta worried about 2013 development balance

Paul di Resta is worried Force India will struggle to keep up with the development race in 2013.

Driving for one of F1’s small-to-middle budget teams, the Scot is concerned that the huge technical challenge of improving the current car as well as preparing for the radical new rules in 2014 will be a major hurdle for the Silverstone squad.

"We have fewer resources than the top teams," the 26-year-old is quoted by Speed Week.

"This will be a disadvantage. At some point we will need to shift development to the 2014 car. Until then, we need to develop really well, because from June or July we will have to stop (developing the 2013 car)."

Some, however, are concerned about the noises being made by di Resta; linking his dip in form late last year to his disappointment in missing out on a top drive for 2014.

"Paul di Resta seems to moan quite a lot," Speed Week quoted a source as saying.

"I would like to see him focus more on beating his teammate."