Read and Get Information about Audi A3 Sportback g-tron, Audi A3 Sportback g-tron Specification, Audi A3 Sportback g-tron Reviews, Audi A3 Sportback g-tron Design, Audi A3 Sportback g-tron pictures and photos.
Design
The Audi A3 Sportback g-tron
has a self-contained rear bumper. It includes a diffuser with chrome struts and
non-visible tailpipes. The g-tron lettering is on the rear and on the front
fenders of the Audi A3 Sportback g-tron.
Engine
The Audi A3 Sportback g-tron, the brand's first
natural gas car to go into production, reveals the sheer depth of the technological
expertise of Audi - from ultra lightweight technology through the highly
advanced infotainment to the driver assistance systems.
It showcases
state-of-the-art CNG technology (CNG = compressed natural gas), complete with
the fuel storage technology. Its two pressurized tanks beneath the trunk floor
each hold around seven kilograms (15.43 lb) of gas; they essentially use the
recess for the spare wheel, thus impinging only minimally on the load capacity.
These tanks, which store the gas at a pressure of
200 bar, use the ultra lightweight construction principle of Audi: They weigh
70 percent less than conventional steel bottles, each of them weighing 27
kilograms (59.52 lb) less than an equivalent steel version.
Their composition
reveals an innovative layout: The inner layer consists of a gas-impermeable
polyamide matrix, while a second layer of carbon fiber reinforced polymer
(CFRP) gives the tank its extremely high strength; a third layer of glass fiber
reinforced polymer (GFRP) provides protection against damage from the outside.
Epoxy resin is used to bind the fiber reinforced materials.
A second highlight of the Audi A3 Sportback
g-tron is its electronic gas pressure regulator. This compact and lightweight
component reduces the high pressure of the gas flowing from the cylinders down
to around five to nine bar in two stages.
It ensures that the right pressure is
always present in the gas rail and at the injector valves - low pressure for
efficient driving in the lower speed range, and higher when the driver wants
more power and torque.
When the pressure in the tank falls below 10 bar
when there remains about 0.6 kilogram (1.32 lb) of gas, the engine management
automatically switches to gasoline operation. The Audi A3 Sportback g-tron is
designed as a bi-fuel concept.
In the NEDC cycle it drives over 400 kilometers
(248.55 miles) on gas and a further 900 kilometers (559.23 miles) on gasoline,
so its overall range is comparable to a TDI. The driver information system
always shows current consumption; two displays in the instrument cluster
indicate the tanks' fuel level. The filler pipes for both are located behind
the same flap.
After refueling, and whenever it is very cold,
the Audi A3 Sportback g-tron is started with gasoline initially, then it is
switched over to natural gas as quickly as possible. Its engine is a modified
1.4 TFSI; the cylinder head, turbocharger, injection system and catalytic
converter are specifically designed to run on gas.
With an output of 81 kW (110
hp) and 200 Nm (147.51 lb-ft) of torque, the compact five-door model
accelerates from 0 to 100 km/h (62.14 mph) in less than 11 seconds; it achieves
a top speed of more than 190 km/h (118.06 mph).
The Audi A3 Sportback g-tron is the benchmark in
its segment for efficiency and economy. Its CO2 emissions in the exhaust gas
remain below 95 grams per km (152.89 g/mile) in the NEDC cycle, and the fuel
costs for the customer are around four euros per 100 km (62.14 miles).
Over 100
km (62.14 miles), the compact car uses on average less than 3.5 kilograms (7.72
lb) of natural gas or Audi e-gas - the fuel that is produced in the Audi e-gas
project from CO2 and water using renewable power.
This fuel is a major step into the future of mobility for the brand with the four rings - Audi is the first carmaker to be establishing production facilities for a whole chain of sustainable energy sources.
This fuel is a major step into the future of mobility for the brand with the four rings - Audi is the first carmaker to be establishing production facilities for a whole chain of sustainable energy sources.
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