Exterior additions to the car include numerous carbonfibre styling upgrades, including extended side blades, while a new three-piece rear bumper now incorporates carbon dibble as well. A more aggressive rear diffuser is also fitted.
Available in three colours, the car sits on ten-spoke lightweight alloy wheels, which McLaren says saves four kilos of weight over the standard units.
Inside, the MSO special gets carbon black leather and Alcantara trim with carbonfibre detailing, with a unique plaque denoting the car.
There's no engine upgrades on the car, which means driver's will get the same 3.8-litre twin-turbocharged V8 engine and seven-speed dual-clutch automatic transmission as the standard car. Whether MSO's additions will have any impact on the standard car's 0-60mph sprint time of 3.0 seconds remains to be seen, but the car will be in action on the Goodwood hillclimb this weekend.