DENVER--(BUSINESS WIRE)--The International Car Wash Group (ICWG), the world's largest local car wash company and the third largest owner of US conveyor car washes, today announced its expansion in to the middle Tennessee/Nashville market with the acquisition of two premier sites from Wash N' Roll. The two companies are also entering into a deal to develop and expand in Nashville and surrounding areas. "Wash N' Roll represents everything we seek in a potential acquisition and partner," said Jeff