Gas-powered i30 concept offers sub-100g/km CO2 emissions and 115bhp
Matt Burt
2 October 2014

Hyundai has shown off the latest fruits of its compressed natural gas (CNG) research and development programme at the Paris motor show.

An updated CNG system has been installed in the Korean manufacturer's i30, mated to its new 1.4-litre T-GDI engine and a new seven-speed dual-clutch transmission.

The power plant can use either petrol or CNG as fuel and automatically switches to petrol once the supply of CNG has been used.

When running on CNG, the engine develops 115bhp and maximum torque of 152lb ft from 1500rpm to 3500rpm. It emits CO2 emissions of 91g/km and meets Euro 6 emission standards, which aren't due to come into effect until 2017.

The CNG is stored in a rectangular tank within the floor pan, ensuring interior space remains the same as in the regular i30.

The tank is lined with a gas-impermeable polyamide matrix and cocooned in a high-performance glass-fibre reinforced plastic. It weighs 50 per cent less than an equivalent steel tank.

Up to 15kg of gas can be stored in the tank at 200 bar pressure. A new electrical pressure regulator lowers gas pressure to an operable state in two steps, first to 20 bar and then to 4 to 11 bar, which is fed into the engine. 

Read more Paris motor show news

Get the latest car news, reviews and galleries from Autocar direct to your inbox every week. Enter your email address below:

Our Verdict

Hyundai i30 Turbo

Can the second-generation Hyundai i30 challenge for class honours?

Add your comment

Log in or register to post comments

Find an Autocar car review

Driven this week

  • Citroën C3 Aircross
    First Drive
    17 October 2017
    It's got funky looks and a charming interior, but it's another small SUV, and another dynamic miss. Numb steering is just one thing keeping it from class best
  • Skoda-Karoq 2.0 TDI 4x4
    First Drive
    16 October 2017
    Diesel version of Skoda’s junior SUV is unobtrusive and undemanding, but we’d still go for the silkier petrol version of the Karoq
  • Audi Q7 e-tron
    First Drive
    16 October 2017
    Expensive and flawed but this understated diesel-electric Audi Q7 has a lot to offer
  • Citroën C3
    First Drive
    16 October 2017
    Is the third gen Citroën C3 ‘fresh and different’ enough to take on its supermini rivals? We spend six months with one to find out
  • BMW X3
    First Drive
    15 October 2017
    A satisfying rework of the X3 that usefully improves its handling, cabin finish, space and connectivity to make this BMW a class front-runner again