Glock, who won the GP2 championship this year, was BMW’s test driver and the Munich marque became involved in a tug-of-love for Glock’s services with Cologne-based Toyota.
The Contracts Recognition Board ruled last week that Glock could join Toyota.
Glock made his F1 debut with Jordan in 2004 and a temporary replacement for Giorgio Pantano. He scored on his debut at Montreal.
Since then he has raced in Champ Car before switching to GP2. He won the title after a season-long battle with Lucas di Grassi.
Glock continues the tradition of GP2 champions going straight into the following year, joining Nico Rosberg and Lewis Hamilton. Top GP2 rookie Kazuki Nakajima made his F1 debut in the season finale for Williams, and will race for the team bext year.
Meanwhile BMW will hold a shoot-out for their 2008 test driver role between Estonian Marko Asmer (2007 British Formula Three champion), Germany’s Nico Hulkenberg (2007 F3 Masters winner) and possibly Robert Doornbos (2007 Champ Car rookie of the year).
More on the 2008 F1 driver line-up