If you select fixed payment and put in the info from your statement (I used the net capitalized cost here), you'll see the effective interest rate is 4.877%:
ETA: you can also play around with the auto loan calculator to determine that, if you took a loan out at that rate with that payment, it would take ~149 months to pay it off and cost you 58,770.36 total, or 14,751.70 in interest, about 1/3 of which you'd pay over the four years of your lease.