As suspected, VX are making the switch to the Vectra for next year's BTCC.
http://www.autosport.com/news/report.php/id/56065
http://www.btcc.net/html/generalnews_detail.php?id=381
http://www.autosport.com/news/report.php/id/56065
http://www.btcc.net/html/generalnews_detail.php?id=381