Hispania Racing Team test and reserve driver Christian Klien has said that F1's newest teams suffer the most from the ban on in-season testing.

Speaking ahead of the Turkish Grand Prix this weekend at Istanbul Park, and prior to news that fellow HRT tester Sakon Yamamoto will run in Bruno Senna's car during first practice on Friday, Klien added that track time is now a 'scarce commodity'.

Despite that though, the former Jaguar and Red Bull racer, noted that he is confident HRT will be able to compete this Sunday with fellow F1 2010 new boys, Lotus and Virgin.

"This weekend in Turkey our main target is to keep up with the other newcomer teams in F1. As the Monaco Grand Prix proved, HRT F1 Team, Hispania Racing is a squad capable of racing neck to neck with those teams particularly because of the reliability we have shown," Klien told his personal website.

"To get better lap times out of the existing chassis is a fairly difficult job now. Because even on F1's tail end no one ever sleeps. But then again this is one reason why I came onboard.

"In Turkey all four drivers will be present. Who gets to drive the Friday practice is a decision entirely left to the team management after weighing all factors.

"Track time has become a scarce commodity. And the test ban hurts a new team even worse than the established ones."

Klien's comments echo those made by team-mate Senna at the start of the season, when the Brazilian called on the powers that be to allow the sport's newcomers additional track time so that they could improve and close the gap to the established teams [see separate story - click here].