Facts & figures

Facts and figures

The variety in the range of CNG models is steadily increasing. The brands of the Volkswagen Group offer a wide range of products, from the small car segment through the compact class to premium models in the middle class and to light commercial vehicles.

1/3 of all house and apartment owners would opt for gas heating if they had a new heating system installed. Additionally, 23 percent would favour heating with natural gas in combination with solar or geothermal heat. Oil heating comes last in the ranking with only every tenth owner opting to have a new oil-fired heating system.

49.2 percent of residential properties in Germany are heated using natural gas. This makes natural gas the most popular source of heat in Germany. Heating oil has a proportion of around 27 percent while district heating is used in some 14 percent of residential buildings.

25 km/h is the speed at which natural gas travels in the Siberian pipelines. After about one week, the energy source from Nowy Urengoi in Western Siberia reaches the landing terminal in Lubmin near the town of Greifswald. It can then flow to the households and industrial plants that require the fuel.

91,436 vehicles powered by natural gas are travelling on German roads. (Status: 1. Jan. 2018)

510,000 kilometres is the length of the gas distribution grid in Germany. This grid is one of the most advanced and safest distribution systems in the world.

In 1860, the inventor Étienne Lenoir from the Belgian province of Luxembourg patented the first operational gas engine. Three years later, he even used this engine to drive from Paris to Joinville-le-Pont – long before the first diesel engine came into operation in 1898.

29 percent of the 38,000 barbecues sold in Germany in 2016 are powered by gas. The gas barbecue segment has the biggest sales in Germany (by comparison with charcoal and electric barbecues). Over recent years, sales of these units have steadily increased.

In 1992, Germany’s first scheduled bus service powered by natural gas was on the road in Nuremberg. The vehicle was of the type MAN SL 202.


Sustainable with alternative fuel: The new 1.0-liter three-cylinder turbocharged and powerful 66 kW (90 hp) engine is distinguished by its bivalent concept: it can be operated with both gasoline and CNG. In gas mode, it operates with particularly low emissions – this applies to bothCO and NOx and particulate emissions. The compact 1.0 TGI is a new engine for the small car class in the Volkswagen Group.

Natural gas – also known as CNG (Compressed Natural Gas) – is by nature a particularly pure fuel. The main component is methane with the chemical composition CH4. Each molecule only contains one carbon atom. Even though natural gas is a fossil fuel, CNG consequently releases around 25 percent less CO2 than conventional fuels when it undergoes combustion in an engine. CNG also burns more cleanly than petrol or diesel – virtually free of fine dust and with significantly lower proportions of other emissions that are harmful to the climate. And because CNG with 13.0 kWh/kg has a higher energy density than petrol (12.0 kWh/kg) and diesel (11.8 kWh/kg), a CNG vehicle not only cuts down emissions that are harmful to the environment, it also saves money at the filling station.


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Audi A3 Sportback g-tron took first place in the ranking for the endurance test run by motor magazine Auto Bild.

Audi A3 Sportback g-tron took first place in the ranking for the endurance test run by motor magazine Auto Bild. The best ever result in an endurance test run by motor magazine Auto Bild • Sustainable proof of quality for Audi g-tron technology • COemissions for the Audi g-tron fleet reduced by 80 % with Audi e-gas • Audi e-gas to run for three years until 31 May 2018 The top rating for the Audi A3 Sportback g-tron (CNG consumption in kg/100 km: 3.6 – 3.3*; fuel consumption combined in l/100 km: 5.5 – 5.1*; CO2 emission combined in g/km (CNG): 98 – 89*; CO2 emission combined in g/km (petrol): 128 – 117*) in the endurance test carried out by motor magazine Auto Bild was based on the everyday experiences and test results of the editorial board, the reliability and not least the final inspection with disassembly of the test automobile and in-depth analysis of all components by technical experts. The results indicate that the premium compact automobile powered by CNG is now at the top of the endurance test ranking list compiled by the editorial board for many years running. Since the trade magazine was founded in 1986, a total of 246 automobiles from different manufacturers have been tested for their performance over a distance of generally 100,000 kilometres. “The result of this endurance test shows that we build high-quality and reliable automobiles – and this is underpinned by the quality of the innovative Audi g-tron power unit with all its components,” commented Werner Zimmermann, Head of Quality Management at AUDI AG, on the outstanding ranking. The Audi A3 Sportback g-tron powered by Audi e-gas (CNG consumption in kg/100 km: 3.6 – 3.3*; fuel consumption combined in l/100 km: 5.5 – 5.1*; CO2 emission combined in g/km (CNG): 98 – 89*; CO2 emission combined in g/km (petrol): 128 – 117*) provides particularly climate-friendly mobility. The synthetic fuel is produced with the assistance of renewable energies from water and CO2 or from raw materials such as straw and green waste. Overall, Audi e-gas effectively binds precisely the quantity of CO2 emitted by the car. Audi and its partners produce e-gas in a number of procedures and plants both in Germany and in many other countries in Europe. Audi is therefore an important player and driver for the energy transition in mobility. Audi provides customers who order the Audi A3 Sportback g-tron (CNG consumption in kg/100 km: 3.6 – 3.3*; fuel consumption combined in l/100 km: 5.5 – 5.1*; CO2 emission combined in g/km (CNG): 98 – 89*; CO2 emission combined in g/km (petrol): 128 – 117*) by 31 May 2018 this fuel for three years as standard – customers only pay the regular price for CNG at the filling station. Audi provides the corresponding CO2 reduction by feeding the calculated volume in the form of Audi e-gas back into the natural gas grid. The German Technical Inspectorate TÜV Süd provides certification for this accounting procedure. * Details depend on the transmission / power unit version ** Based on pure gas operation (CNG) in a well-to-wheel analysis (environmental footprint that includes fuel production and driving by the vehicle) in comparison with the Audi A3 Sportback 1.4 TFSI with 110 kW: As a g-tron customer, you fill up as normal at any CNG filling station of your choice. AUDI AG ensures that the volumes of gas calculated on the basis of the statutory standards for consumption and emission measures in accordance with NEFZ/ WLTP and statistical data regularly established by Audi for the annual distances travelled of Audi g-tron vehicles ordered in the period from 7 March 2017 to 31 May 2108 are replaced by Audi e-gas – for a period of 3 years from the first registration as a new vehicle. The Audi e-gas is fed into the European natural gas grid and therefore replaces fossil natural gas. The scope of the CO2 savings calculated on this basis may be less when actually driving on the road. You can find more information at audi.com/g-tron.

Audi A5 Sportback g-tron

Audi is continuing to expand its fleet of vehicles powered by natural gas. The Audi A5 Sportback g-tron is the third model after the A3 Sportback g-tron and the A4 Avant g-tron that customers can either run on natural gas (CNG) or petrol. The automobile is powered by a 2.0 TFSI engine. The turbo unit extended to CNG operation generates 125 kW (170 hp). A maximum torque of 270 newton metres is available at 1650 revolutions per minute.

Werlte, Lower Saxony: electricity from wind farms

Wind is transformed into gas in Werlte, Lower Saxony. Volkswagen subsidiary Audi uses electricity generated from wind farms and CO2 from a biogas treatment plant to produce methane that is fed into the natural gas grid. Synthetic fuel (e-gas) from Werlte can be used to supply up to 1,500 Audi A3 Sportback g-tron with fuel so that each can drive for 15,000 kilometres every year in carbon-neutral operation.

Spain: Innovative project SMART Green Gas

How water is transformed into gas: SEAT and Aqualia are developing the first alternative regionally generated fuel from wastewater in Spain. Upcycling – how would it be if something completely new were to be created from waste? Automobile manufacturer SEAT joined forces with Aqualia to put this question to one of Europe’s leading water companies and subsidiary of the Spanish service group FCC. SEAT and Aqualia are cooperating on the innovative project SMART Green Gas. The two companies want to produce a renewable biofuel from wastewater entirely in Spain which can be used as fuel in vehicles powered by natural gas.

Scirocco GT24-CNG

Put your foot down with natural gas! The Volkswagen Scirocco GT24-CNG (Compressed Natural Gas) styled in a bright orange livery swept to a class victory in the legendary 24 Hour Race at the Nürburgring in 2009. This success enabled Volkswagen to provide impressive testimony that power units running on natural gas had been unjustly tainted by the image of being rather staid. The high-performance engine powering the Scirocco GT24-CNG combines the power of 282 hp with great efficiency and fuel savings – a big plus not to be underestimated in the world’s toughest racing marathon.