Vehicle moves to the left instead of throttling

Hello! I’m trying to make a vehicle accordingly to the official manual and facing the trouble marked above. I have created a model in Blender 3D 2.74 (official build), since I know about the needed alignment, I created it straight along the X-axis, without any rotation, and the same way I created an armature.

I have started with a blank level, added a box collision body and noticed that its axis aren’t aligned properly. I rotated the box, but that had no effect. Spheric collision bodies I even couldn’t rotate. Here is a pack with assets.

I use Kubuntu 14.04.2 with russian locale if it is important.

Hello there, hope not too late …if you are still interested here is a tutorial on how to make everything in Blender correctly How to get wheeled vehicle from Blender to Unreal Engine 4 from scratch [OLD] - YouTube