Just went to my LHS and picked up a 3s 1800mah lipo. I really wanted a 2s, but they didn't have anymore. I will get a 2s soon. From what I hear, 3s is really fast!
I also picked up a heatsink fan for the motor. Hopefully it will keep the motor a bit cooler.
I just took the car out for the first time and it was a blast. I ran the stock 1200mah pack and it didn't last long at all. What kind of run times are you guys getting with them? I suppose my run time will increase with the 3s lipo?