Background: Introduced in 2015, the second-generation 991 represented an important development in the evolution of Porsche's iconic 911, most notably through the introduction of turbocharged engines across the Carrera range.

The Targa 4S combined the distinctive styling and open-air appeal of the Targa body with the performance and all-weather capability of the Carrera 4S, incorporating Porsche's electronically controlled all-wheel-drive system and the wider rear bodywork associated with the four-wheel-drive models.

At its heart was a new 3.0-litre twin-turbocharged flat-six producing 414bhp and 369lb.ft of torque, representing a substantial increase in torque over its naturally aspirated predecessor.

Whilst the majority of buyers opted for the convenience and rapid gear changes of the PDK gearbox, the manual transmission was considerably less frequently specified, making three-pedal examples particularly appealing to enthusiasts seeking a more traditional and involving driving expe...