If depreciation is a concern then never buy a new car...any new car.
Vehicles depreciate a little more or a little less and/or a little faster or a little slower when comparing one vehicle to another but the value of all vehicles drops like a rock; especially in the first two years.
So...buy what you want when you want; just understand than from a financial standpoint, it's never a real good move to buy (or especially to finance) a depreciating asset.