Highlights Iconic 3.8-litre flat-six with 7-speed PDK Just 15k miles from new Full ‘Cup’ conversion (road legal) Air jack system installed by PARR (Porsche specialists) Cup rear wing Overview The 991 GT3 is a masterpiece of modern engineering that successfully bridged the gap between raw motorsport heritage and daily usability.

Its crown jewel is a screaming, naturally aspirated flat-six that wails all the way to a spine-tingling 9,000 rpm, while rear wheel steering imbues it with a level of agility that belies its exterior dimensions.

However, this is not your common or garden 991 GT3.

This particular example has been transformed and maintained at a cost reportedly approaching £300,000 into a track-ready yet road-legal Cup specification.

And that’s not even including the initial cost of the original factory car.

After buying the car new in 2014, the first owner - reportedly a Hong Kong billionaire car collector - instructed Progressive Motorsport to convert it into a Cup car usin...