Residual value on a lease is illusory at best. Each finance company supposedly uses an outside independant service to determine the residual value - that is what they will sell the vehicle to you at the end of the lease (or they hope someone like you.) That being said, each bank will generally have a different residual value, but often times they will also have a different interest factor that they will charge. As an example, two years ago, I leased a CLK 550 convertible. Mercedes Finance had a residual value of $34,000 on a $70,000 car (after three years of ownership.) Bank One gave it a residual value of only $27,000. However, the monthly payments were almost the same, the difference coming from the interest factor that they charged - Mercedes charged a lower interest factor, while Bank One charged a higher interest factor - the results were within $50 per month (Bank One was actually cheaper), now in one year I can buy the car for $7,000 less by having gone with Bank One, or I can just walk away and buy a certified pre-owned from mercedes or I can by another smart.