Hi, I have have a MacBook Pro 13 inch 2011 prototype, with a red motherboard and i want to sell it. Have you an idea for the price ? It's a 13 inch 2011 (MPBP 8,1) with HDD (320 GB) and 4 GB of RAM, SuperDrive. Mac OS X say the CPU is a Core i3, but it's a Core i7 ES, i mean (2620M, 2,7 GHz, 4 MB of cache, etc.). There is a Thunderbolt logo on the side, but the Thunderbolt is not inside, System Information say there is no Thunderbolt. The machine is in good state, only minor scratch. It works with Snow Leopard, but *not* with Lion, Mountain Lion or Mavericks (only in safe mode with these three OSes).