Extra miles on a lease

I am thinking about the drive more milages for my lease

For example, with all payments my one mile cost me around $0.57

Each extra mile is $0.3, does it make sense to drive like extra 20000 miles and return the car with 37000 miles and just pay extra $6k and one extra service cost?
as new lease/loan will brings DAS/taxes/fees and again each mile will cost more than I would pay for extra miles.

It would be easier to respond to your hypothetical with an equally hypothetical mystery car/brand.

But what’s difference in this case?

Jeep Wagoneer S, in case if it helps

Are you asking whether one car driven “extra” can be cheaper than two cars leased simultaneously?

What’s the total cost of the lease if it’s 36/10k & 36/15k?
What term did you use to come up with 57 cents? Can you post your math?