TinyRC.com - MegaToys Thunder-Charger clones

Has anyone else heard of or have one of these? I have one and know this much. Just looking at the chassis and you would think it's a Bit. They've got a roll-up antenna, use 2AAs, and use the same size wheels and bodies. They also use the same motors as a ZZ and are a little faster than a 1stGen Zip Zap stock, with a range of about 20 feet indoors.(Including an internal antenna for the car) They have a 110 mAh battery, but it says nothing about voltage. They are fairly reliable and are much cheaper than real Bits, the only problem I had with mine was the batttery life, but charging it on my 3v Zcar charger for 1 1/2 min. instead of on it's controller fixed that. Anybody else know more about these cars? Can any of you bit owners tell me if the Thunder-Charger is just as good as or worse in quality than a real Bit?