He also signed with Peugeot to race in 24 Hours of Le Mans .
In 2008 Klien signed as BMW Sauber 's test and reserve driver for the 2008 Formula One season .
Klien also signed with Peugeot to race in 24 Hours of Le Mans .
In 2008 Klien signed as BMW Sauber 's test and reserve driver for the 2008 Formula One season .