Car manufacturer BMW has pulled an advert that showed a couple getting it on in the back seat of a driverless car.
The clip was uploaded to its BMWi-branded Twitter account earlier this week, tech news site CNET reported.
It showed a couple kissing in a club, before the action is transported to the back of a car.
Flashing red-and-blue lights of a passing police car interrupt the makeout-session, and it's revealed there's no one driving the car - BMW's upcoming self-driving Vision iNext vehicle, due 2020.
Once the police car has passed, the couple resume snogging.
"New moments of joy," the slogan at the end of the short clip reads.
The clip was only online briefly before being pulled.
"This is certainly one of the first times any automaker has gotten so brash in advertising the freedom self-driving cars will bring," CNET journalist Sean Szymkowski wrote.
"BMW is strongly hinting that in-car sex will absolutely be a thing."
BMW doesn't currently sell any kind of autonomous or self-driving vehicle. The iNext appears to be at least a Level 4 autonomous vehicle, capable of operating "without human input or oversight but only under select conditions defined by factors such as road type or geographic area".
The most common autonomous vehicles at present - such as those running Tesla's Autopilot system - are only Level 2, and require the driver to respond to traffic signals and change lanes themselves, and keep their hands on the wheel.
"BMW wants the production version of the Vision iNext to become the company's new technology flagship, which we know it will when the company slogan changes to the Ultimate Sex Machine," joked Car and Driver magazine.
Earlier this year a video of a couple engaging in numerous sex acts in a self-driving Tesla was uploaded to Pornhub. Tesla boss Elon Musk responded on Twitter, saying it "turns out there's more ways to use Autopilot than we imagined".