Hey, Mato advertises their tanks having 'metal motors' vs 'plastic motors'. Did you get the metal gearbox or nylon? 

<table width="540" cellpadding="0" cellspacing="0" border="0" class="main_box_tr"><tr><td class="main_box_td1"></td><td class="main_box_td2">Added Incentive With Mato Mart</td><td class="main_box_td3"></td></tr><tr><td colspan="3" height="10"></td></tr><tr><td colspan="3" class="area_text">Metal Engine

The Metal engine comes with all Henglong tanks purchased from Mato Mart. This engine is stronger than other plastic engines, and will help the tank run more smoothly over different surfaces. It also lets the tank move at a more realistic speed.

NI-CD SC 2000MAH 7.2V Power rechargeable battery

This battery is more powerful and lasts longer than most standard batteries. It comes with all Henglong Tanks purchased from Mato Mart.</td></tr></table>

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