The terrorist attack at Stockholm's Drottninggatan last year was the starting point for a project, where politicians, people from the National TRansport Administration and the automotive industry work together to try to bring geo-fencing to Sweden's towns and cities.
The technology allows a city to decide that it only will allow geo-fence-enabled vehicles into the city centre - and then digitally force the drivers to limit their speed to, say 30 kilometres per hour, inside the zone. By communicating via GPS directly to the vehicles, the city can literally stop anyone from driving faster than that.
Or you could ban fossile fuelled vehicles in a city centre, and only allow electric vehicles in. A hybrid vehicle would be made to automatically turn off the fossil fuel engine and switch to electricity when it enters "the zone". You could also temporarily geo-fence an area, if there is a festival going on, or a football match and you want to lower the existing speed limit, for just one night.
And yes, you would be able to stop future terrorists from deliberately mowing down people by driving a vehicle through a predestrianised area.
In the report, Radio Sweden's reporter finds out what it is like to drive a geo-fence-enabled car, and speaks to some of the people involved in the project.