Well, if depreciation is a big factor in buying a car, you should probably not look into this market of automobile at all. If you want to drive an M3, you not only need to be able to accept and pay for the car initially, but also afford all the costs of ownership. These include premium gas that vanishes because of spirited driving, maintenance costs that may be initially covered BMW but will eventually be exorbitant, tires that also vanish quickly, and heavy initial owner depreciation.
I do not understand why anyone would pay so much to own this car and then not drive because they are worried about resale. If you have the savvy to have the means to purchase this car, you should have the wherewithal to comprehend the costs of ownership before buying it. Otherwise, get a car that costs less but you can have more fun with because you're not worried about every mile you drive it.
Now:'05 G35 6MT\Laser Red\Beige\Sport\Premium
06/2008: M3, 335+Dinan, or ...