Turn in or buy car? Lease?

I have a 2015 Honda Accord (with leather). It is a lease for 3 years, 36,000 miles. The car is very reliable, gas is pretty efficient, and the design is nice. However, I am not fond over the car as I was to my previous car. I am going over my miles soon and I have three choices: Pay the extra miles, pay the rest of my lease early and turn in the car before I hit 36k, or purchase the car. The extra miles would be plus what I owe left on the lease, I can pay up front early the rest of my lease and turn in the car early, and I can always buy the car ($16,000). I don't want to pay mileage, so that option is taken out. It's either pay my lease early and turn in the car before 36k or buy the car and keep making monthly payments. Help!

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