On 5 July 2009 he won the National Hot Rod World Championship for his fourth World title in a row.
His younger brother Stuart is a former professional footballer.
2013 - Ginetta GT Supercup
In 2013 Boardley contested the entire season of the Ginetta GT Supercup, with a Ginetta G55 entered under the banner of his own CBM Motorsport team. Boardley finished the season in 9th place with 316 points. His highest place finish was 3rd place at Thruxton.
2014 - Ginetta GT4 Supercup
For 2014, Boardley is being entered by JHR Developments, the winning team of 2013 champion and now BTCC driver Tom Ingram.