Not sure which touring car class you are planning on racing, but ORCA are probably the most popular ESC for touring car racing at the moment, if going to do 13.5 or 17.5 the Yeah Racing Hacktronic is virtually the same as the ORCA and a great price at £69.99
ORCA
http://www.rccarshop.co.uk/index.php...lt/?q=oes610xt
Yeah Racing
http://www.rccarshop.co.uk/index.php...ult/?q=htn-e01