Still summer tire thread – XC90 Sport – 255/50 R19

Hi, here I have promised it: If I need new tyres, I open another tire thread to the thousands of existing ones. My rear Pirelli P-Zero asimetrico are in the back – after I bought 2 new tyres last summer because of a nail in the flank. There are a lot of summer tire threads, but the 19″ variant is usually not the topic. Therefore the following questions. 1) My V8 has a registered top speed of 210 km/h. Would you like to then take “H” tyres (210) or still “V” tyres (240)? The selection of tire types is much larger with “H” .. 2) Thomas 850R96 recommends the Conti 4×4 in other threads. Thomas: Would you recommend it in 19″ and for fast speeds? 3) 2 of my Pirellis are still quite OK. Would you mix different tire types (not sizes!) on the axles? 4) I focus on a tire with less wear than with the Pirellis… @Andi: it does have 1 3 months instead of 4 weeks… Nice greeting Jürgen