The Registry·Entry
Vol. I · Entry No. 10
McLaren Senna: 500 Cars, One Track-Bias Decision
Registered · 17 MAY 2026
500 McLaren Senna road cars built at Woking. 4.0L M840TR V8, 789 hp, carbon Monocage III, active aerodynamics. The Registry buyer's reference for the Ultimate Series.
roduction of the McLaren Senna was capped at 500 road-legal units. An additional 75 units of the McLaren Senna GTR, a track-only variant, were produced separately. The Senna programme ran from 2018 to 2019, with assembly at the McLaren Production Centre in Woking, England. The Senna is McLaren''s Ultimate Series successor to the P1, and the second car in Woking''s modern hypercar lineage.
The Senna carries the name with the formal consent of the Senna family. Ayrton Senna drove for McLaren in Formula 1 from 1988 to 1993, winning three World Championships with the team. The naming was a deliberate alignment of the car''s stated purpose, a road-legal hypercar with a track-bias specification, with the driver associated with that uncompromising standard.
The engine is a 4.0-litre twin-turbocharged V8, McLaren''s M840TR unit, developed from the M840T architecture used in the 720S. Output is rated at 789 horsepower at 7,250 revolutions per minute. The 0-to-100 kilometre per hour time is 2.8 seconds. The carbon-fibre Monocage III chassis is a development of the Monocage architecture used across the Ultimate Series. The dry weight is approximately 1,198 kilograms. Drive goes to the rear wheels through a seven-speed dual-clutch transmission.
The bodywork is carbon fibre throughout, with active aerodynamic elements front and rear that adjust under load and at speed. The car''s downforce specification at high speed is the highest McLaren has homologated on a road car at the model''s production date. The visual treatment is engineering-driven. Vents, ducts, and downforce surfaces are not styled for symmetry. They are placed where the aerodynamic case requires them.
Build verification on a Senna begins with the chassis allocation. McLaren sold the Senna programme to existing McLaren Ultimate Series clients on a priority basis, with the build slots allocated to documented McLaren collectors before broader release. The car''s chain of custody from Woking to the original buyer is traceable through McLaren Special Operations.
The second verification is the powertrain. The M840TR engine is a Senna-specific tune of the McLaren V8 family. Service intervals and oil specifications are stated by McLaren and must be followed by an MSO-certified facility. A documented service history with intervals respected is the threshold a buyer evaluates against.
The third is the carbon Monocage. The chassis is a single moulded carbon-fibre structure. Repair after structural damage, if any, must be performed to McLaren specification with McLaren-supplied materials. A Senna with non-specification structural repair is a different car from one without.
The fourth is the active aerodynamic system. The rear wing''s hydraulic actuation, the active front blade, and the integrated electronic management are calibrated as a system. Verification of full system operability is part of the pre-purchase inspection, not optional.
The fifth is the option specification. The Senna was offered with a range of MSO Defined options including paint schemes, interior finishes, and visible-carbon body specifications. The original build sheet is the authoritative reference. Deviations from the build sheet, if any, should be documented.
The sixth is the operating context. The Senna is a road-legal car, but its bias toward track use is explicit in the design brief. Suspension settings, brake bias, and aerodynamic load distribution are calibrated for track operation. A buyer who intends primarily road use should understand the resulting calibration.
A McLaren Senna with complete Woking provenance, original specification, intact carbon structure, fully operable active aerodynamics, and documented service through MSO is one of 500 road cars at that standard. The combination is the buyer''s reference.