Complex sentence: Germain Racing fielded its first full-time entry in the Nationwide Series in 2008, with Mike Wallace driving, who brought his car number, 7, and his sponsor, Geico, with him from Phoenix Racing.
Split into simpler sentences: Germain Racing fielded its first full-time entry in the Nationwide Series in 2008, with Mike Wallace driving. Wallace brought his car number, 7, and his sponsor, Geico, with him from Phoenix Racing.