I have read a lot of horror stories about lease turn in. I have leased 8 vehicles in my life. I always turned the vehicle in below the miles due and several months before the lease end. All GM vehicles. I am a retired GM powertrain development engineer. I never had to pay an additional fee. When I turned in my Volt it was 6 months early because I wanted to but a 17 Premier, that's right not lease, I did not want to keep the 14 because I wanted safety 1 & 2. The 14 didn't even have a backup camera. It also had a lease buyout of around $24000. Including my GM discount I figure I got the 17 Premier with nav and safety 1 & 2 for about $28000, no brainer to me. I just received my final closeout letter from Ally. No additional fee. I checked on the 14 today by googling its VIN it is for sale in Indianapolis for $18000. If I could have bought it for that I would still take the 17 due to the additional features and electric miles.