WHAT THE HELL...?

Hello. The aliens are simply stupid. If you’ll notice, the arm coming out of the front of the Ford is a RIGHT arm, not a left one as may first be assumed.

Thus, that leaves only one possible solution:

The aliens modified the Ford shown in the picture into a weapon of destruction. The arm is the essence of this weapon; it is what spun the bike around and hurt our tragic hero. The aliens look on with a stupid curiosity to see just how well their weapon worked. Satisfied, they masturbate behind the bushes (they are decent aliens) knowing their leader will be pleased. The only coincidence is that the alien weapon arm happens to be wearing the same shade yellow as our human victim. Also, helmets are not all they are cracked up to be. Cheers.

Sincerely,
Yer daddy