Depreciation basis for Used Vehicle purchase with warranty and other add ons

I recently purchased a used vehicle with add ons - 3 year warranty, GAP insurance and lifetime oil change.  I'm trying to determine what the vehicle basis amount will be for depreciation.  Of course I am adding the license and other fees to the purchase price, but what about these add ons. Can I separate out these items in their own assets, or at lease the 3 year warranty since the life of the vehicle is 5 years.

Thank you