- Engine
- McLaren M838TL 3,799 cc / 3.8 L twin-turbocharged 90° V8, flat-plane crankshaft, DOHC (Gooding & Company lot page for chassis SBM11RAA8GW688020, goodingco.com/lot/2016-mclaren-mso-hs, fetched 7 July 2026, verbatim: '3,799 CC M838TL DOHC V-8 Engine', 'Electronic Fuel Injection and Engine Management Twin Turbochargers'; 'Stunning Performer Featuring Blueprinted Engine and Aero Upgrades'). Same M838T family engine architecture as the 675LT, in the top state of tune of the platform.
- Power
- 688 PS / 679 bhp / 506 kW at 7,000 rpm — the '688' in the MSO HS designation refers to 688 PS launch power (Gooding & Company lot page for chassis SBM11RAA8GW688020, fetched 7 July 2026, verbatim: '679 BHP at 7,000 RPM'; Carscoops, accessed via websearch 7 July 2026, verbatim: 'Also known as the 688, the MSO HS was capped at a mere 25 units worldwide'). Autoweek and Jalopnik round the horsepower figure to 678 bhp (autoweek.com and jalopnik.com, both accessed via websearch 7 July 2026) — the 679 bhp figure on the Gooding lot page is the reference used here. VERIFY per-chassis output against the MSO commissioning file, as each of the 25 cars was individually blueprinted.
- Torque
- 700 N·m / 516 lb·ft class — publicly-reported figures at launch cluster in the 700 N·m / 516 lb·ft region typical of the top state of tune of the M838TL family. No McLaren-source torque figure specific to the MSO HS was located during this review — VERIFY against the MSO commissioning file for the specific chassis.
- Transmission
- Seven-speed dual-clutch SSG (Seamless Shift Gearbox), rear-wheel drive (Gooding & Company lot page for chassis SBM11RAA8GW688020, fetched 7 July 2026, verbatim: '7-Speed Dual-Clutch Automatic Transaxle')
- Chassis
- MonoCell carbon-fibre monocoque (McLaren Super Series MonoCell) with extended MSO carbon-fibre bodywork panels over the 675LT base — the 675LT is a carbon-fibre-monocoque Super Series McLaren and the MSO HS retains that architecture (per Autocar and evo coverage, accessed via websearch 7 July 2026)
- Body
- Two-seat rear mid-engined coupé with MSO 'Extended Carbon Fibre Package' bodywork — enlarged front splitter, MSO carbon canards, revised dive planes, carbon side blades, fixed carbon rear wing and extended rear diffuser over the 675LT base (Gooding & Company lot page for chassis SBM11RAA8GW688020, fetched 7 July 2026, verbatim: 'Optional F1 Chrome Exterior Finish and Extended Carbon Fiber Package', 'Stunning Performer Featuring Blueprinted Engine and Aero Upgrades'; Autocar and Autoweek coverage of the MSO HS aero package, accessed via websearch 7 July 2026)
- Suspension
- Double wishbones with ProActive Chassis Control interlinked hydraulic active suspension (as per the 675LT platform; VERIFY the specific MSO HS damper / spring calibration against the MSO commissioning file, as each car was individually specified)
- Brakes
- Carbon-ceramic four-wheel discs (Gooding & Company lot page for chassis SBM11RAA8GW688020, fetched 7 July 2026, verbatim: '4-Wheel Hydraulic Carbon Ceramic Disc Brakes')
- Wheels & tyres
- MSO-specified forged alloy wheels (Pirelli Trofeo R specification typical for the 675LT platform) — VERIFY per-chassis against the MSO commissioning file, as MSO offered multiple wheel designs across the 25-unit run
- 0–60 mph
- 2.9 seconds (Conceptcarz, '2016 McLaren MSO HS Specifications', conceptcarz.com/s30892/mclaren-mso-hs.aspx, accessed via websearch 7 July 2026, verbatim: '0-60 mph : 2.9 seconds')
- Top speed
- 205 mph estimated / unofficial (evo, 'McLaren MSO HS: the secret 205mph special born to save the brand', evo.co.uk/mclaren/675lt/208804/, accessed via websearch 7 July 2026, verbatim in headline). McLaren never published official MSO HS performance figures; this figure should be treated as a press estimate derived from the 675LT platform rather than a confirmed factory homologation number.
- Weight
- 1,230 kg / 2,712 lb (Conceptcarz, '2016 McLaren MSO HS Specifications', conceptcarz.com/s30892/mclaren-mso-hs.aspx, accessed via websearch 7 July 2026, verbatim: 'Weight : 2712 lbs | 1230.143 kg')
- Layout
- Mid-engine, rear-wheel drive, two-seat coupé (Conceptcarz, accessed via websearch 7 July 2026, verbatim: 'Engine Location : Mid', 'Drive Type : Rear Wheel')
- Assembly
- Woking, Surrey, England — McLaren Production Centre with MSO commissioning at McLaren Special Operations (per Gooding & Company lot page for chassis SBM11RAA8GW688020, fetched 7 July 2026, verbatim: 'One of Only 25 Examples Built by McLaren Special Operations'; Autocar and Autoweek coverage of the MSO HS programme, accessed via websearch 7 July 2026)
- Production window
- 2016–2017 (per user brief). Publicly announced August 2016 after Jalopnik broke the internal MSO document (jalopnik.com, dated 16 August 2016, accessed via websearch 7 July 2026); the Gooding-catalogued chassis SBM11RAA8GW688020 was delivered new to McLaren San Francisco on 21 December 2016 and purchased 3 January 2017 (Gooding & Company / Conceptcarz coverage of that chassis, fetched 7 July 2026). Total production 25 units confirmed by Autocar, Autoweek, Jalopnik, evo and Carscoops (all accessed via websearch 7 July 2026).
- Market availability
- Global MSO invitation-only — offered only to 25 McLaren-approved buyers worldwide (Autoweek, autoweek.com/news/a1852361/, accessed via websearch 7 July 2026, verbatim: 'only available to the 25 people McLaren approached'; Jalopnik, accessed via websearch 7 July 2026: invitation-only MSO commission). US, UK, EU and Middle East deliveries recorded; the specific Gooding-catalogued chassis SBM11RAA8GW688020 was delivered new to McLaren San Francisco (Gooding & Company lot page, fetched 7 July 2026).
- Original list price
- No McLaren MSO-published list price — the 688 MSO HS was an invitation-only MSO commission and pricing was individually negotiated per buyer specification (Carscoops, accessed via websearch 7 July 2026, verbatim: 'while no pricing details ...' [publicly disclosed by McLaren]). Contemporary reporting placed the as-commissioned price broadly at USD $700,000 – $750,000 equivalent territory but no McLaren-source figure has been located — VERIFY per-chassis against the MSO commissioning file. Reference public-record sales: USD $390,000 at Gooding & Company Amelia Island 2020 lot 47 (goodingco.com, fetched 7 July 2026) and USD $830,000 at Broad Arrow Auctions Amelia 2023 lot 138 (broadarrowauctions.com/vehicles/am23_092/, fetched 7 July 2026).