Peugeot recently announced that it plans to bring the 208 Hybrid Air System 2L Concept to the 2014 Paris Motor Show next month. The concept will only be but a glimpse of the French automaker's fuel-saving technology used in reaching the government's target of 2.0 l/ 100 km (50 km / l). Peugeot states that the technology used in creating the concept car was restricted for luxury and competition models. They had to hand-select only those that can be made by the factories quickly and at the same time not change the car's traits.

The car weighs only at 860 kg and is made up of steel, aluminum and carbon fiber composites. The floor pan is now made of materials that underwent Electrophoretic Deposition (EPD), a process that that creates a composite floor that consists of 3 three bonds using thermoplastic technology. The new floor pan is now able to absorb more energy in an event of a crash. The composite materials are used on the tailgate as well and it features a “semi-structural” construction, lessening the amount of strengtheners needed by directing the carbon fiber towards the direction of the forces acting on it. The unique construction further reduces weight by removing one of two of the stabilizer jacks. Carbon composites make up the body panels, side panels, doors, roof and the coil springs underneath the car. The carbon fiber springs provide better handling as it decreases unsprung weight. Aluminum is used on the car's engine mounts, rails, and side members.

Rear quarter view of the Peugeot 208 HYbrid Air 2L Concept

Powering the 208 HYbrid is a 1.2-liter inline-three PureTech engine and a hybrid system that uses compress air. The system itself is comprised of a compressed-air tank below the trunk, a low-pressure tank near the rear axle that acts as an expansion chamber and a hydraulic system consisting of a motor and a pump in the engine bay. It has three modes in total; in Air Mode, the 208 runs on compressed air alone and does not emit CO2 nor consume fuel, ideal for urban environments according to Peugeot. On petrol mode, the gasoline engine is used and is aimed for main roads and highways. The last mode, Combined, runs on both compressed air and gasoline and is designed for changing between urban and highway settings. The air can be recharged two ways, when slowing down; braking or taking the foot off the accelerator or recycled energy from the engine that feeds compress air to the tank.

The other features present in the car include a spoiler on the tailgate and an air extractor below the car, allowing air to freely flow underneath, a rear view camera, an innovative tire design that has an improved rolling resistance and better aquaplaning contention and better shock absorption on uneven terrain.