Dear Bosanek,
you have made a very good job about tyre options for the jimny. I would like to make some contributions, but would like to know if the intention is to maintain a UK focus, or to enlarge the scope to a more global approach. Recently, jimny has been made in Brazil, in many different versions, including 215 tyre size, diferent bumpers and so on. So would like to know if a global approach is desired. Also, there are many different tyre size availability in some brands, from country to country. For instance, Michelin south america developed the ltx force (it´s been replacing the LT /AT2). This tyre had the 205 75 r15 size, and was made considering the terrible south american contryside roads. http://www.michelin.com/fre/presse/Presse-et-actualites/actualite-michelin/Innovation/MICHELIN-LTX-FORCE-la-meilleure-solution-quelle-que-soit-votre-route.
Regards Nelson