Advertised on trademe.co.nz in August 2018, asking $$28,000 NZD. A nice example despite relatively high mileage. Some work has been done to the car, as noted by the seller (comments from the advertisement copied below):

This is the cover car on NZ classic Car issue 316. Panel and paint done, including the rust prone areas. Seats re upholstered and new headlining. Bosh K- Jetronic fuel injection unit serviced and new injectors. Any of you that have done that will know how expensive that is to do. The list goes on and on, needs to be seen to be appreciate. 
In 1975 a sports-oriented variant of the Volkswagen Golf, called the Golf GTI was introduced in March of that year at the Frankfurt Motor Show. The idea behind was rather straightforward take a basic transportation economy car and give it a high-performance package, making it practical and sporty. It was one of the first small cars to adopt mechanical fuel injection. In 2004, Sports Car International declared the Golf Mk1 GTI to be the 3rd best car of the 1980s. This special model was powered by 1588 cc four-cylinder engines fed by a Bosch K-Jetronic fuel injection, which helped them develop a respectable 110 (80 kW) @ 6,100 rpm and 140 Nm (103 lb-ft) of torque @ 5,000 rpm. Aided with a curb weight of just 810 kg (1,785 lb), it allowed the GTI to accelerate 0-60 mph in 9 seconds. The top speed was of 180 km/h (some 110 mph). The term hot hatch was retroactively applied to the Mk1 Golf GTI some years later.