141mpg Citroen C4 Cactus AIRFLOW 2L revealed

Super-frugal Cactus capable of 141mpg runs on compressed air and could go on sale by 2020

A new super-economical Citroen C4 Cactus AIRFLOW 2L model will be revealed at the Paris Motor Show next month. Although strictly a concept car, it features clever technology that will no doubt be used in a low-emissions version of the funky crossover in the not-too-distant future.

Citroen says the AIRFLOW 2L will use just two litres of fuel for every 100km driven. Convert that to miles per gallon and you’re left with an impressive 141mpg figure – not far off the Mitsubishi Outlander PHEV plug-in hybrid.

However, unlike that car, there’s no complicated plug-in hybrid system. Instead, the AIRFLOW 2L gets a clever HybridAir setup, which uses compressed air rather than electricity to power the car and drive the wheels. It’s paired with the normal 1.2-litre three-cylinder petrol engine, which functions as normal when the air ‘runs dry’.

That alone cuts fuel consumption by 30 per cent, but Citroen didn’t stop there. You only need to look at the concept car to notice a variety of aerodynamic tweaks that help maximise efficiency.

The sleek bodykit means it will slip through the air easily, while the 19-inch wheels are specially designed to improve fuel economy. The usual door mirrors have been replaced by slim cameras, to reduce drag, and small shutters in the bumper can open and close to direct air in a more streamlined direction. The final alteration is the LED front and rear lights. Citroen says they consume very little power, which directly benefits fuel economy.

The AIRFLOW 2L is also 100kg lighter than the standard C4 Cactus, thanks to the use of high-strength aluminium, steel and composite materials. Citroen says it’ll be just as safe as the standard car, though.

Currently, the most fuel-efficient model in the Cactus range is the 1.6-litre BlueHDi diesel, which boasts 82g/km CO2 emissions and will return an impressive 91.1mpg economy. The fuel savings for the AIRFLOW 2L model would be huge, and while a production version is some way off, Citroen says it could be on sale by 2020.

For more information on all the cars set to debut in Paris, take a look at our Paris Motor Show preview page. Or for reviews of the current Citroen range, visit the Carbuyer Citroen reviews page.

Recommended

Best classic cars to buy in 2022
Classic cars to buy in 2022
Tips and advice
4 Aug 2022

Best classic cars to buy in 2022

New Citroen C5 X is now on sale from £27,790
2021 Citroen C5 X crossover - front 3/4
News
25 Jul 2022

New Citroen C5 X is now on sale from £27,790

New Citroen e-C4 X electric saloon revealed
Citroen e-C4 X driving
Citroën
29 Jun 2022

New Citroen e-C4 X electric saloon revealed

Citroen range gets new ‘C-Series Edition’ trim
C3 C-Series
News
14 Apr 2022

Citroen range gets new ‘C-Series Edition’ trim

Most Popular

Best new car deals 2022: this week’s top car offers
MG HS
Deals
12 Aug 2022

Best new car deals 2022: this week’s top car offers

Nissan Ariya vs Volvo XC40 vs Volkswagen ID.4 - which is best?
Hero image
News
11 Aug 2022

Nissan Ariya vs Volvo XC40 vs Volkswagen ID.4 - which is best?

2023 Hyundai Ioniq 5 N spotted testing
2023 Hyundai Ioniq 5 N
News
11 Aug 2022

2023 Hyundai Ioniq 5 N spotted testing

Tips & advice

View All
Car dashboard warning lights: the complete guide
Car dashboard symbols and meanings
Tips and advice
23 Mar 2022

Car dashboard warning lights: the complete guide

Electric car charging stations: a complete guide
Electric car charging station
Tips and advice
5 Nov 2021

Electric car charging stations: a complete guide

PCP vs HP – which type of car finance is right for you?
PCP vs HP
Car buying
17 May 2022

PCP vs HP – which type of car finance is right for you?

Average speed cameras: how do they work?
Average speed cameras: how do they work?
Tips and advice
20 Jun 2022

Average speed cameras: how do they work?

Best cars

View All
Top 10 best car interiors 2022
Peugeot 208 hatchback
Best cars
25 Jun 2021

Top 10 best car interiors 2022

Top 10 best electric cars 2022
Ioniq 5
Best cars
12 Jul 2022

Top 10 best electric cars 2022

Top 10 best cheap-to-run cars 2022
Nissan Leaf front
Best cars
12 Jul 2022

Top 10 best cheap-to-run cars 2022

The UK's top 10 fastest hot hatchbacks 2022
Audi RS 3 driving - front view
Hot hatches
24 Jun 2022

The UK's top 10 fastest hot hatchbacks 2022