Mine are the 17” SUV versions. I spoke to the Michelin rep when I was getting them a year or so back and he advised the SUV version over the Agilis van version if I wanted better grip, the Agilis are made for a van that spends its life on the motorway but wants better grip in the winter while the SUVs are a bit softer compound and are supposed to give a bit more grip at the expense of longevity. I’d been happy with them for a year until I went to Scotland in Feb and they met snow for the first time. I pulled into a lay-by to let someone past and found myself on 3-4” of snow with the front wheels going nowhere. Had to turn off traction control and put grip strips under the wheels to be able to get back on the road. Then while back garden camping with my granddaughter this summer, the wheels wouldn’t go anywhere on wet grass and dug little ditches in my lawnBugger, I was only pricing them up this morning as a potential buy. That said, I don't really understand how yours could be so different from the 'car / SUV' version that I've got on another car, albeit in 20" form and whose performance on every surface has been exemplary - that's the main reason that I was looking at them for the van (but they would be 17").
Now looking for something else a bit better, but looking more likely I’ll go for all terrains