The PSA Group’s product director, Laurent Blanchet, told Autocar at the Paris motor show that the future of diesel is “uncertain” and that “we will have to see if the market is going to delete or give up on diesel”.
The company has recently launched a new 1.5-litre diesel engine that meets the most stringent emissions regulations for the next few years but may not be adapted beyond that.
“We have decided not to develop more evolutions of diesel technology, because we want to see what's going to happen,” Blanchet confirmed.
Speaking separately, Peugeot CEO Jean-Phillipe Imparato admitted that the company had "made a mistake with pushing diesels," as its aggressive development and substantial investment may not pay off in terms of the fuel's future market share.
The market share of diesel engines in European car sales has fallen from around 50% at the start of 2017 to roughly 36%. Fallout from the Volkswagen Dieselgate emissions cheating scandal is cited as one reason buyers are staying away, alongside threats of increased taxation and concerns over particulate pollution.
Other manufacturers, such as Kia, have also halted further diesel development.
Blanchet continued: “We have decided that, if in 2022 or 2023 the market is, say, 5% made of up diesel, we will give up on it.
"If the market is 30%, the question will be very different. I think nobody can say yet where the market will be. But what is clear is that the diesel trend is going down.