Volkswagen has completely overhauled its natural gas models and is equipping its Polo and Golf TGI with a third natural gas tank. This allows the Polo TGI to now travel up to 60 kilometres further in pure CNG mode than its predecessor. Driving with natural gas significantly reduces CO2 emissions because the combustion of CNG generally produces less CO2. An even better CO2 balance can be achieved by fuelling with biomethane or e-gas. Biomethane is extracted from plant residues; e-gas is produced from surplus green energy (power-to-gas), which are added to the fuels.
On the Polo with 1.0 three-cylinder engine (66 kW / 90 PS) the additional tank carries 16.5 litres and extends the natural gas storage to 91.5 litres in total, or 13.8 kg respectively, meaning that the Polo can travel up to 368 kilometres on CNG in WLTP. As a back-up, both models come with a petrol tank – albeit a much smaller version.