Diesel engines: your questions answered
Speth said the cleaner emissions of modern diesels is the important bridging technology in ensuring emissions continue to fall before hybrids and electric cars really hit the mainstream. Widespread adoption of hybrid and electric cars is needed for the industry to meet stricter legislative emissions targets, but the industry was instead seeing a shift back towards petrols.
“It’s bad for the industry, bad for Jaguar Land Rover, and bad for Europe,” he said. The last point is key, as Speth said that the European car industry more than anywhere else in the world is reliant on diesel cars, and moves away from them would impact the continent’s ability to meet targets.
Speth hinted that he believed the start of the demonisation against diesel can be traced back to the Volkswagen Dieselgate emissions scandal, on which he said: “This kind of manipulation software is not acceptable. Unfortunately, the whole automotive industry suffers, not just Volkswagen.”
Government reveals plan to cut emissions in towns and cities
Education is now needed on modern diesel technology and to promote its benefits, Speth believes. “Nobody believes the automotive industry anymore,” he said. “They see us as offenders and not giving the right information. We have to show our technology is the best you can buy, to reduce the damage to health and the environment.”
Speth said there would be no specific date when diesel-powered cars would disappear. “ICE to ACE – internal combustion engine cars to autonomous, connected, electrified ones – will happen in parallel. There’s no switch. You can’t say diesel will go in 2020. We need to develop both, internal combustion diesel and petrol engines, in addition to battery electric vehicles.”
Speth believes that battery electric vehicles will prove to be the key future powertrain technology, with about 25-30% of JLR’s sales planned to be of electric cars by 2025. By 2020, half of the company's models will offer some form of electrification, ranging from mild hybrids to fully electric cars, such as the Jaguar I-Pace. Speth doesn’t see a future for fuel cells, however, believing them to be “poor from an environmental point of view”.
Diesel engines: what comes out of your car's tailpipe?
“The future is pure battery electric vehicles,” he said. “No other technology will bring that freedom.”
He called on the British government to do more to support the development of battery technology, and bring together academia to help achieve it. At the moment, Speth says JLR will be buying in all of its battery technology from Asia, as there simply is no provider in the UK.
“It’s not for JLR to lead, the UK should do a lot better. Academia should be working on the challenges of modern mobility. We’re on an island, and the technology is too big to transport.
“The UK needs a manufacturer. It has missed an opportunity to be ahead in modern mobility. We have the best universities, we know the future is battery electric vehicles, why not use their skills? We’d buy batteries from here tomorrow," he said.