CARSCOOPS:The MSO HS was capped at a mere 25 units worldwide and each came outfitted with unique options that could only be ordered through McLaren Special Operations.
The MSO HS rocks a 3.8-liter twin-turbocharged V8, albeit one that was upgrated to 688 PS (678 hp). Torque was capped at 516 lb-ft (700 Nm) of torque while various weight-saving measures resulted in the MSO HS weighing 40 kg (88 lbs) less than the 675LT.