Nov.29 (GMM) BMW-Sauber has given permission for Timo Glock to make his test debut for Toyota at Jerez next week.

A spokesman for the 25-year-old's new team confirmed on Thursday that Glock, who has signed a multi-season Toyota contract beginning in 2008, will run in last year's TF107 at the Spanish circuit on all four days.

The German, who will reportedly wear an unbranded helmet and overalls, remains under contract to BMW until 31 December.

Glock is scheduled to run alongside his expected 2008 teammate Jarno Trulli on Tuesday and Wednesday, before Toyota's new test driver Kamui Kobayashi takes over from the Italian on the last two days of the final 2007 test.