Good, then if we use the lower US$ 5,000 as a reference, the "complete cycle" turns to be actually advantageous for Xchange. 15,860+5,000=20,860 against a cost

Good, then if we use the lower US$ 5,000 as a reference, the "complete cycle" turns to be actually advantageous for Xchange. 15,860+5,000=20,860 against a cost (adding the costs of "basic maintenance", assuming an intervention every 5,000 miles of 100 US$ each) of 16,500+20*100=18,500 That is 2,360 over 18,500 in 2.5 years, roughly 13% or 5%/year interest (excluding administrative/managing costs).