Following an announcement made last week, Audi has introduced the A3 Sportback g-tron yesterday at the start of the 2013 Geneva Motor Show.
What makes it different than the regular model is its two gas tanks which can carry up to 15.3 lbs (7 kg) of compressed natural gas (CNG) at a maximum pressure of 200 bar. These are manufactured from carbon fiber-reinforced polymer (CFRP) and when full they each weigh 59.5 lbs (27 kg).
Power comes from a normal 1.4-liter TFSI engine with 110 HP (81 kW) and 147 lb-ft (200 Nm) of torque. The five-door hatchback can reach 62 mph (100 km/h) in 11 seconds and a top speed of 118 mph (190 km/h), regardless if it runs on gasoline or CNG.
When running on CNG, Audi says the car consumes 3.5 kg / 100 km and provides a range of about 242 miles (400 km). If gasoline is used, the range stands at 559 miles (900 km), while using both types of fuels you get an impressive 807.7-mile (1,300 km) range.
The vehicle is equipped with an electronic gas pressure regulator capable of lowering the high pressure of the gas flowing from the cylinders. When greater performances are necessary, it can provide a high-pressure flow, while during low-speed driving it will enable a low-pressure gas.