I had a set of 19" Federal Couragia F/X on an RRS TDV8 which I purchased about 4 years ago. They were very good in the wet and I got around 55,000 klms out of them. Would buy them again if I need "road" tyres. Not expensive.
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On my range rover sport 2008 tdv8 (disco3 with funky body), I recently changed my compomotive 18" with general tire grabber at3 255/55R18 to the standard 19" and new pirelli verde all season 255/50R19. That made a huge difference to handling and comfort. The underdamped shox feeling was greatly reduced too. I drive on fast windy country road including dirt. Still drives across wet paddocks on the property OK. Not cheap though. (compomotives now have D697 265/60R18 for trips only; the general tire at3 where better than the D697 on road too).
I'm on my 2nd set of Pirelli Scorpian AT Plus tyres on my D4. I really like them! very sure footed, even in severe wet conditions and quiet. I like the way the D4 drives with them. I rarely go off sealed roads but tow a boat to some fairly remote places and like the AT design just in case. If I never left the bitumen I would probably still go with the Pirellis! Not cheap, but I got 80,000 km out of the last set.