Cobra Stinger transport [updated '18] (GI Joe)

This vehicle was never a toy in the GI Joe line but I wanted more Cobra/Iron Grenadiers vehicles. Essentially this is a 6 wheeled version of the Stinger 4x4 but with more room to transport soldiers in back.
Inspired by this:
http://www.netviperxcustoms.com/ExtraPics/Pages/COBRASTRIKE.htm
My finished model weighs 10 grams so it cost me about $0.24 for the material to print it.

Update '18: added the optional underpan (glued to the underside of the vehicle to give it a little more bulk) and t