Oh yeah its a riot!
Im with Helmet on the Michelins, XM2's 195 70R14's.
Really quiet and they seem to ride soft as well although I haven't done many miles on them yet but id suggest 20'000 km isnt bad considering the weight of the 450.
Last set I had on a large car did 30 ish thousand before I replaced the fronts which were probably 70% worn and the rears were not far behind wear wise so they are obviously a softer tyre but id expect a shorter life as a sacrifice for the best wet weather performance.