Jan.10 (GMM) BMW-Sauber has asked Marko Asmer to test again, with the German team yet to appoint a replacement for departed third driver Timo Glock.

The 23-year-old Estonian ran for the Swiss based team last month at Jerez, and was significantly faster than his main competitor for the official test and reserve position in 2008, Spanish GP2 race winner Javier Villa.

The Dutch magazine Formule 1 Race Report claims that BMW-Sauber, based at Hinwil in Switzerland, has confirmed that Asmer is set to return to the test cockpit for another outing.

A spokesman said a decision about the vacant test driver slot will be made at the end of January.

The team's new car, the F1.08, will be launched on 14 January at the new BMW vehicle delivery centre in Munich, Germany.

Asmer, the reigning British F3 champion, made his F1 test debut in a BMW-powered Williams as a teenager in 2003.