Complex sentence: Vauxhall retained Chilton and Fabrizio Giovanardi for 2007, but Tom did not want to stay at VXR in 2008, and it was announced that Chilton would partner Gordon Shedden at Team Dynamics for the 2008 BTCC season.
Split into simpler sentences: Vauxhall retained Chilton and Fabrizio Giovanardi for 2007, but Tom did not want to stay at VX Racing in 2008. He left to partner Gordon Shedden at Team Dynamics for the 2008 BTCC season.