By the mid-1990s, RUF had cemented an unrivalled reputation for the aftermarket modification of high-performance Porsches.

Customers could buy directly from the small Bavarian firm, or provide a base car for significant upgrades.

The latter course was chosen for this unique example, based upon an already-rare European-market 993-generation Carrera RS, which was delivered new to Livorno, Italy in 1995.

Two years later, its first owner commissioned RUF to upgrade their RS to ‘Turbo R’ specification, mating a highly modified “993” 911 Turbo powertrain to the existing rear-wheel-drive transmission.

The car also underwent extensive improvements to both braking and suspension systems, further to a suite of cosmetic and performance enhancements.

These included a GT2 rear wing, five-spoke Speedline Corse alloys, RUF instrumentation with steering wheel, and removal of the rear seat.

The car was sold to its second owner in 2004 and was immediately returned to RUF in Pfaffenhausen for a ful...