A project that started in top secret four years ago is now being shared with other car makers as Peugeot seeks a partner for its hybrid air technology which is helping it achieve CO2 emissions as low as 46g/km from a two-litre petrol engine.
To make hybrid air viable, annual production needs to be around 400,000 units a year, Eric Lalliard, powertrain senior chief engineer at Peugeot, told just-auto.
PSA Peugeot-Citroen will be able to account for 200,000-250,000 of those but the balance will need to come from another manufacturer.