 | This article relies largely or entirely on a single source. (June 2017) |
The 2003 ASCAR Season was the third season of United Kingdom-based NASCAR style stock car racing, originally known as ASCAR. From this season 'Days of Thunder' was adopted as a promotional brand inspired by the NASCAR based movie of the same name. It was used alongside the ASCAR brand for the 2003 season before taking over entirely from 2004.