In 2003 Wilks competed in the Junior World Rally Championship (JWRC) driving a Ford Puma prepared by Chris Birkbeck Motorsport finishing seventh in the standings.

For 2004 Wilks made the switch from Ford to a works entry in the JWRC with Suzuki driving an Ignis alongside Per-Gunnar Andersson.

2008 saw Wilks supplement his BRC commitments with several outings in a Honda Civic Type R R3 rally car for Italy's JAS Motorsport.

[4] The injury meant that Wilks missed three events on the IRC Calendar making a comeback at the Barum Czech Rally Zlín at the end of August.

[5] It was confirmed that Wilks, who finished the year in sixth overall in the championship, would make the switch from Škoda to the Kronos Racing run Peugeot UK Team for the 2011 IRC.