He won the LMP2 category of the 24 Hours of Le Mans in 2005, driving for RML Group alongside Tommy Erdos and Mike Newton.

Coaching duties include W Series, working with triple champion Jamie Chadwick, Argenti Motorsport, Double R Racing and Balfe Motosport.

[1] For the following season, he finished fourth in the British F3, driving for Richard Arnold Developments, whilst he also unsuccessfully entered the German Formula Three Championship with RAD, and the Macau Grand Prix with March Engineering.

[1] He returned to the British F3 full-time in 1995, this time for Alan Docking Racing, and once again finished fourth, with an eleventh place at the Macau Grand Prix (for HKS), and a retirement at the Masters of Formula 3 (for ADR).

[4] He also made his debut in the British GT Championship in 2000, driving for Cirtek Motorsport in a Porsche 911 GT3-R. His first race, the Thruxton Circuit event, where he drove alongside John Cleland, resulted in a fifth-place finish, whilst his second entry, at the Oulton Park round (this time partnering Adam Simmons) saw him fail to finish.

[6] His first event for the team came at the 24 Hours of Le Mans of that year, driving alongside Anthony Reid and Jonny Kane in the new MG-Lola EX257.

[8] The team were ineligible for points, due to their late entry, and that fifth-place finish proved to be Hughes' best result of the season, although Reid was able to take a victory at the penultimate race of the season, held at the Brands Hatch Indy circuit,[9] with Hughes taking the team's first pole position for the feature race.

Reid, Hughes and Kane also entered that year's 24 Hours of Le Mans, but once more retired, this time due to gearbox failure after 129 laps.

[20] In 2005, Hughes started his season at the 12 Hours of Sebring, driving the TVR with Kane and Tomlinson, but now under the Team LNT banner, and competing under the new GT2 regulations.

It would not prove a successful event; engine failure forced the team to retire both Hughes' car, and their other TVR, driven by Richard Dean, Patrick Pearce and Marc Hynes.

[27] For the first – and to date only – time, Hughes entered the 24 Hours of Daytona in 2006; driving a Cheever Racing-entered Crawford DP03-Lexus alongside Stefan Johansson and Thomas Erdos, and finishing 22nd overall.

[36] Hughes returned to Team ASM for the 24 Hours of Le Mans, partnering the same drivers as he had in 2006, but once more failed to finish, due to an accident after 137 laps.

He made one solitary appearance that year, driving in the 1000 km of Silverstone for Team WFR, alongside Jody Firth and Manning in their Zytek 07S/2, which resulted in a fourth-place finish.

His season started with a retirement at the 8 Hours of Castellet, part of the LMS, driving for Quifel-ASM in a Ginetta-Zytek GZ09S/2 alongside Amaral and Olivier Pla.

[54] He then returned to the LMS for the 1000 km of Algarve, this time driving a DAMS-entered Oreca FLM 09 alongside Firth, and finishing sixth overall, taking the Formula Le Mans class win.

[55] His next four events were split across the LMS and the GT1 series, with both GT1 entries being for Sumo Power GT, whilst he entered one event for RLR msport (in their MG EX265) and one for DAMS,[5] with his best overall finish out of the four races coming at the Nürburgring round, where he and Campbell-Walter finished eighth,[56] whilst his final LMS race of the season, the 1000 km of Silverstone, saw a 14th place overall, with a class win for Hughes and Firth.

[59] The season finished with Hughes and Firth being crowned champions, beating nearest rival Dean Stirling by three points,[60] having won three races, and taken eight podiums.

[1] During the SPEED Euroseries season, he stood in for Ricardo Zonta at Sumo Power GT for two rounds of the FIA GT1 World Championship, partnering Enrique Bernoldi,[61] and finishing fourth and seventh in his two events.

[5] Following those two races, Hughes drove for Quifel-ASM at the 2011 24 Hours of Le Mans, driving the now-LMP1 class Zytek 09SC (an evolution of the Ginetta-Zytek used the previous year).

[70] Once more in the Le Mans event, however, mechanical maladies struck, with suspension failure after 196 laps forcing the team to retire from a strong position.

[73] In addition to his ELMS and 24 Hours of Le Mans entries, Hughes returned to the British GT Championship with Team WFR in the Ginetta G50 GT4, being partnered by Jody Fannin.

[74] The pairing dominated the GT4 category, winning eight of their ten races on the way to the title, and finishing 84.25 points ahead of nearest rival Zoë Wenham.

[77] He remained in the British GT Championship, but moved up to the GT3 category, driving M-Sport Racing's Audi R8 LMS alongside Rembert Berg.