679bhp McLaren MSO R coupe and Spider revealed

McLaren Special Operations (MSO) has revealed a new pair of bespoke supercars named MSO R, one as a coupé and another as a drop-top Spider.

Both cars are destined for one customer and are technically identical apart from their different lids and accompanying rear sections.

Like the MSO HS commission from last year, the MSO R models are based on the 675LT but use blueprinted (where components are matched with heightened precision) versions of its twin-turbocharged 3.8-litre M838TL V8 engine.

The mid-mounted unit also blows through exhaust ports that have been hand-polished and join to a titanium exhaust, helping to boost power output to 679bhp – up from 666bhp in the now-discontinued 675LT. Drive is sent rearwards through a seven-speed dual-clutch automatic gearbox.

Along with their uprated drivetrain, the MSO R models come with aggressive aerodynamic features including a twin-element rear wing, front dive planes and MSO Visual Carbonfibre Pack parts. Both cars sit on five-spoke wheels; the coupé’s are finished in satin black, while the Spider’s are gloss black.

Inside, black Alcantara covers the dashboard, contrasted by red bucket seats complete with MSO R embroidery. To signal their uniqueness, the cars get MSO R plaques on their upper sills.