While I drive my Crossfire all year round, I have been storing a Corvette for many winters. I have found that a battery tender is worth its weight in gold- absolutely extends the life of the battery(especially if you don't drive the car that much when the car is out of storage). I will second the motion to fill the tank to prevent condensation forming in the gas tank and add that it is a smart idea to put STABIL(spelling?) or some other fuel stabilizer(dealer suggested I do this after I had to replace some of the car's fuel system and no problems since). Finally, to help prevent flat spots I park the car on a large piece of carpet(to soften the concrete). Whether or not it makes a lot of difference in the tires- it definitely looks cool to park your car on carpet! Good luck