Audi A3 Sportback g-tron gains upgraded engine, extra CNG tank

If you forgot the Audi A3 Sportback g-tron existed, we don’t blame you. It’s not as if millions of customers are rushing their Audi dealerships to buy cars that run on compressed natural gas (CNG). Despite the lack of demand, the Audi A3 g-tron is actually an interesting car and one that offers better emissions than the standard car. Now, Audi has updated its A3 e-tron on the verge of a new generation of A3.

Despite the current-gen Audi A3 being on its way out, the four-ringed brand has decided to update its worst-selling version of it. Now, the A3 g-tron gets an extra CNG tank and an all-new engine.

Prior to this update, the Audi A3 g-tron had two CNG tanks, both made from glass-fiber reinforced polymer (GFRP) and carbon-fiber reinforced plastic (CFRP), along with a traditional gas tank. Now, Audi shrunk the gasoline tank a bit to make room for another CNG tank, though the new third one is made from steel. It does eat into trunk space a bit but not much.

It’s a hybrid of sorts, as it can run on either gasoline or CNG. As with the last car, the new engine has been modified to run on either fuel, though this new engine is much improved. Rather than the old 1.4 liter TFSI engine, which made an uninspiring 109 hp, the new engine is a 1.5 liter TFSI engine that makes 129 hp. More importantly, with the upgraded engine and third CNG tank, the new g-tron can do 400 km on only CNG power, which is more than enough for most customers.

When running on CNG, the engine produces 25-percent less CO2, making it more environmentally-friendly than a standard A3. That may not seem revolutionary but it can really help for customers that don’t live in areas where EV infrastructure is built up yet. So if you live in an area where EVs aren’t great options but still want to reduce emissions, the Audi A3 g-tron is a good option. Plus, it only costs €30,600, which is affordable for an alternative fuel car.

Nico DeMattia

I've been in love with cars since I was a kid, specifically German cars. Now I get to drive them talk about them on the internet.