Maxim Zimin - Photo Credit: Alastair Staley/GP3 Series Media Service

Klasterka will roll out of the pits on Friday practice in Barcelona in the Jenzer machine driven by Maxim Zimin when pre-season testing finished at Silverstone - Photo Credit: Alastair Staley/GP3 Series Media Service

Jenzer Motorsport have completed their driver lineup ahead of this weekend's first races of the 2012 GP3 Series season with the signing of Czech newcomer Jakub Klasterka.

Klasterka, who turned 18 last month, raced in the Formul'Academy Euro Series in 2009 when he was 15 and finished 11th overall with two podium finishes at Oschersleben in Germany. He also contested a round of the Formula Renault 2.0 Northern European Cup that year at the Most circuit in his homeland.

Klasterka has yet to test the GP3 car, and will therefore drive it for the first time in free practice on Friday morning in Barcelona. He joins 20-year-old Patric Niederhauser and 16-year-old Robert Visoiu in a youthful and experienced driver trio, with Niederhauser and Visoiu both stepping up from Formula Abarth where they had raced for two and one seasons respectively.

Drivers who tested Jenzer's third car over the winter included another Formula Abarth driver Michael Heche, Matheo Tuscher who has since started racing in Formula Two and Maxim Zimin who drove for Jenzer in GP3 last year but now looks set to miss out on the 2012 season.

With Mucke Motorsport's departure having left the number of teams in GP3 at nine, 26 of the 27 available seats have now been taken. Trident Racing are the only team who have not yet named a third driver, but there is no longer a requirement for all teams to enter three cars.