In January 2021, Acura formally announced it would enter IMSA's new GTP class in 2023 using an LMDh-compliant design. In December 2021, Oreca was announced as the chassis partner, making Acura the first manufacturer in the LMDh ruleset to select Oreca. It was confirmed at the same time that Meyer Shank Racing and Wayne Taylor Racing would campaign the ARX-06 for 2023. The car first ran at Circuit Paul Ricard in July 2022, followed by its first full test at Circuit de Nevers Magny-Cours in July 2022.
The ARX-06 is built on an LMP2-based carbon fibre monocoque, measuring 5,100 mm long, 2,000 mm wide, and 1,060 mm tall, with a 3,148 mm wheelbase. Front and rear suspension use double wishbones and pushrods. The engine is the Acura AR24e — a 2.4-litre 90-degree twin-turbocharged DOHC V6 mounted mid-longitudinally. A Bosch-supplied 50 kW rear motor generator unit provides the hybrid element. Drive goes through an Xtrac P1359 seven-speed sequential gearbox. Combined output is rated at 500 kW (approximately 671 hp). The car weighs 1,030 kg and runs on Michelin tyres with AP Racing carbon brakes. The principal designers included David Salters as Technical Director at HRC US, with Mark Crawford, Guy Melville-Brown, Jonathan Seaman, and Bill Yex also credited.
The ARX-06 made its race debut at the 2023 24 Hours of Daytona alongside the BMW M Hybrid V8, Cadillac V-LMDh, and Porsche 963. Both Acura entries qualified in the top three. Meyer Shank Racing's number 60 car, driven by Tom Blomqvist, Colin Braun, Helio Castroneves, and Simon Pagenaud, won the race — with Wayne Taylor Racing's number 10 finishing second, giving Acura a 1-2 result with the fastest lap on its race debut. After the race, IMSA penalised Meyer Shank Racing 200 championship points following an investigation that found the team had manipulated tyre pressure data to gain an advantage. The team was allowed to keep the race victory, creating controversy in the paddock.
Later in the 2023 season the ARX-06 added wins at the Chevrolet Grand Prix and the Petit Le Mans. The two teams scored a combined six podiums across the season. Despite the victories, both the Drivers' and Teams' Championships went to rivals: Action Express Racing won the Teams' title and Cadillac took the Manufacturers' crown, with Acura finishing third in Manufacturers' standings. At the season's end, Meyer Shank Racing departed the series to focus on IndyCar.
For 2024, Wayne Taylor Racing managed both ARX-06 entries. The number 40, driven by Jordan Taylor, Louis Delétraz, and Colton Herta, won the 2024 12 Hours of Sebring. Delétraz completed a late-race pass on Porsche's Felipe Nasr for the lead and held off Cadillac's Sebastien Bourdais at the finish. The number 10 car of Filipe Albuquerque and Ricky Taylor won the 2024 Chevrolet Detroit Sports Car Classic. Wayne Taylor Racing recorded two wins and four total podiums. Acura again finished third in the Manufacturers' standings.
For 2025, Wayne Taylor Racing moved to Cadillac. Meyer Shank Racing returned with a two-car programme: the returning number 60 for Blomqvist and Braun, and a new number 93 entry. The programme continued into 2026, with the car still competing as of that year.
By winning at Daytona, Sebring, and Petit Le Mans within the GTP era, the Acura ARX-06 became the first car to achieve that triple in the LMDh era. Its debut victory at Daytona remains one of the most immediate returns on an LMDh investment, even if its post-race penalty cast a shadow over the result's reception.
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