An XJS needs a little different treatment compared to other more basic brit cars...Last winter I drove the XK8, but this winter it's gunna be stored...Hopefully in the next few weeks, I don't have the room to block it up in the garage so I got a spare set of rims with old tires to put on and I bought a tickle charger that charges the battery through the cigarette lighter, this will keep the battery up(removing the battery from these cars can cause a bunch of problems) I also hope to start it a few times as I am not as comfortable letting car this sophisticated sit for a long period of time as I would be with an MG. Really winter storage is no big deal, as long as it's indoors you should be fine.