The Islamic State issued this call in September 2014:

So O muwahhid, do not let this battle pass you by wherever you may be. You must strike the soldiers, patrons, and troops of the tawaghit. Strike their police, security, and intelligence members, as well as their treacherous agents. Destroy their beds. Embitter their lives for them and busy them with themselves. If you can kill a disbelieving American or European — especially the spiteful and filthy French — or an Australian, or a Canadian, or any other disbeliever from the disbelievers waging war, including the citizens of the countries that entered into a coalition against the Islamic State, then rely upon Allah, and kill him in any manner or way however it may be….If you are not able to find an IED or a bullet, then single out the disbelieving American, Frenchman, or any of their allies. Smash his head with a rock, or slaughter him with a knife, or run him over with your car , or throw him down from a high place, or choke him, or poison him….

“Terrorist plotting ‘driverless car’ attack found guilty,” by Jessica Carpani, Telegraph, July 12, 2019 (thanks to Henry):

Farhad Salah has been found guilty at Sheffield Crown Court of preparing to commit acts of terrorism by plotting an attack using an explosive device in a driverless car.

The jury failed to reach a verdict on his co-defendant, chip-shop owner Andy Star who was charged with the same offence.

Prosecutors told the five-week trial that Salah, 24, and Star, 32, were in the early stages of testing small improvised explosive devices when they were arrested in high-profile raids on their homes in a Sheffield community centre and a Chesterfield fish-and-chip shop in December 2017.

But Star has always insisted that gunpowder and other items found in his flat above the chip shop were all connected to his long-standing interest in fireworks.

At the beginning of the trial, Miss Whyte told the jury that Salah was a supporter of Islamic State (IS), despite him being an Iraqi-Kurd – a nationality usually associated with the fight against the terror group….

She said that, a week before he was arrested, Salah messaged a contact on Facebook saying: “My only attempt is to find a way to carry out martyrdom operation with cars without driver, everything is perfect only the programme is left …”

Ms Whyte QC added: “Farhad Salah had decided that improvised explosive devices could be made and used in a way here in the UK that spared his own life preferably but harmed others he considered to be infidels.”