ADESS AD25

The ADESS AD25 is a Le Mans Prototype LMP3 race car designed, developed and built by Portuguese manufacturer ADESS to ACO 2025 3rd Generation Le Mans Prototype LMP3 regulations. The car is successor to the ADESS-03 Evo and can be built from its predecessor. It is set to be eligible in ACO's Le Mans Cup, European Le Mans Series championships in 2025 with the Asian Le Mans Series in the following year.^[2]

ADESS AD25

Category	Le Mans Prototype
Constructor	ADESS
Predecessor	ADESS-03 Evo
Technical specifications[1]
Chassis	Carbon-honeycomb monocoque, Zylon “anti-intrusion” side panels
Suspension (front)	Double wishbones, pushrods with power steering and spring-dampers combination Five ways KW dampers Adjustable anti-roll bar system
Suspension (rear)	Same as front
Length	4,650 mm (183 in)
Width	1,890 mm (74 in)
Wheelbase	2,925 mm (115.2 in)
Engine	Toyota V35A-FTS 3,500 cc (3.5 L; 213.6 cu in) V6 twin-turbocharged
Transmission	Xtrac P1152 6-speed sequential
Power	460 hp (466 PS; 343 kW)
Weight	970 kg (2,138.5 lb)
Brakes	Brembo Six-piston callipers Ø 355 mm x 32 mm front and rear steel discs
Competition history
Notable entrants	Nielsen Racing
Notable drivers	Colin Noble Tom Fleming

Developmental history

On July 7, 2024, the Automobile Club de I'Ouest formally announced that 2025 would be the first year of the third generation Le Mans Prototype 3 (LMP3) cars using the previously announced, Oreca built, Toyota V35A V6 twin-turbocharged engines.^[3] All four previous constructors were retained for the new regulations.^[2] Upgrades to the car include a completely new cooling system, engine cover and new rear bodywork kit as a result of the new engine.^[4][5] New dampers from KW, were also added to improve performance.^[6]

Testing started in July 2024, at Estoril with TCR driver Quique Bordas [es], and continued at Barcelona and Portimão.^[7] Wayne Boyd also tested the car in September.^[6] Straight-line testing was conducted at Beja Airport with more track testing at Portimão and Estoril. Stéphane Chosse, the CEO of ADESS, reported that aero stability had improved throughout over 3,000 km (1,900 mi) of testing before homologation.^[8] In January 2025, ADESS inked a deal with Nielsen Racing and signed Colin Noble as its factory development and race driver.^[9]