Very impressive numbers, both. I don't think my FTP has changed much over the last few years (hovering the 270s or 280s) nor do I much care about it. I did slightly better in my cyclocross racing this season.
Per Strava, I rode just over 7000km, but that includes over 1000km of indoor riding, which really isn't the same thing. Nordic skiing and running are also good cycling replacements in my Canadian winters.