Central/Southern Scotland, cars breaking road springs has been very "fashionable" for years, maybe worse in areas where road salt is used in winter. Poor road surfaces which is a UK wide issue makes things worse.
I've only ever had road springs break on VW Group cars, which is what I've owned since 2000, so maybe things got worse from that point in time, or VW Group source really nasty quality road springs. Never had a spring break on Fords or VX Cav GSI 4X4.