The modifications consisted of larger carburettors, a higher compression ratio and a weight loss of 50 kg. At the front, a grille between the retractable lights personalised the car, while inside the cabin, the dashboard abandoned Citroën styling in favour of a design taken straight from the Bora V8. A few minor tweaks to the chassis improved the car, which could now easily reach speeds in excess of 240 km/h. The SS is still the most powerful version of the Merak, although a prototype (designed for the American market) was tested with a 3-litre turbo engine. The project never reached the production stage.