Hamilton made his racing debut in the Renault Clio Cup United Kingdom in 2011 driving for Total Control Racing.[4] He attracted much fan and media attention despite finishing last in his first race.[5] His first season was the subject of a BBC documentary entitled Racing with the Hamiltons: Nic in the Driving Seat.[6] He finished the season in 14th with 133 points. In the same year, he drove in the ERDF Masters Kart series.[7][8]
For 2012, Hamilton retained his seat at Total Control Racing in the Renault Clio Cup UK.[9] He finished the season in 21st with 51 points.[10]
For 2017, Hamilton secured a seat in the Renault UK Clio Cup, driving for WDE Motorsport. Hamilton partnered three-time champion Paul Rivett and Lee Pattison. He finished 20th in the standings with 44 points.[13]
In 2018, Hamilton maintained his seat with WDE Motorsport, which had been rebranded to JET with WDE Motorsport. He finished 20th in the standings with 20 points.[14]
On 21 February 2020, Hamilton was confirmed as the fourth Team HARD driver in a Volkswagen CC, retaining his ROKiT sponsorship.[16] In the final race at Brands Hatch, in round 2 of the championship, Hamilton scored his first-ever BTCC point after finishing the race in 15th place.
For 2022, Hamilton signed with Yazoo with Safuu.com Racing, driving a Cupra Leon. He competed in the most races per season of his BTCC career and still increased his average finishing position by a grid spot. He took 29th in the championship overall.[18]
On 6 April 2023, Hamilton was confirmed to have kept his seat at Yazoo with Safuu.com Racing, which rebranded to become Go-Fix with Autoaid Breakdown. It would become his most successful season in the BTCC to date, finishing sixth in race 2 of the opening round at Donington Park.[19] In mid-2023 he withdrew from the season after his team collapsed, and was therefore left without a seat for the 2024 season.[20] He ended the season 24th in the championship with 10 points.[21]
On 27th March 2025, Hamilton returned to the BTCC with Un-Limited Motorsport (rebranded as Powder Monkey Brewing Co with Esidock) partnering Dexter Patterson and Max Hall.[22] He finished the season 28th in the championship.[23]
† As Hamilton was a guest driver, he was ineligible for points.
* Season still in progress.
Complete British Touring Car Championship results
(key) (Races in bold indicate pole position– 1 point awarded just in first race; races in italics indicate fastest lap– 1 point awarded all races; * signifies that driver led race for at least one lap– 1 point given all races; Superscript number indicates points-scoring qualifying race position)