All the talk here seems to be about Diesel Particulate Filter while the OP’s car is a petrol engine with a Petrol Particulate Filter and according to the link file28 posted above it say and I quote “According to manufacturers, cars with petrol particulate filters shouldn’t need to regularly be driven at higher speeds for short periods to stop them getting clogged up with soot, unlike with diesels.”
That said I’ve had three cars with Diesel Particulate Filters and many, many short journeys in Winter and have never had any problems with the cars. While the two VAG cars had a system that triggered the re-gen when the filter is near its capacity my current KIA diesel seems to do it little by little every 250 miles noticeable by an increase in revs with the DSG box and engine working together to keeping the engine hot along with a slight smell of rubber burning though with 11,000 miles on the clock It don’t smell so bad now when it regens.
Yes we would all love affordable EV’s cars that suit our disability so no good just saying go electric and the best we can hold out for is a petrol engine that returns reasonable MPG for the weight they have to pull.