Before the memory loss he would have turned this broken car into a hovercraft or a space craft.
Yup.
He looks in deep thought, GeronL, as if McGyver is trying to think of a way to make a part and repair his car using only the materials in his pockets for tools and materials.
And all he has in his pocket is some change, a Halls cherry cough drop, a lead tire weight he found that he thought might come in handy, some lint and his hand.
So that must be why he also looks worried. And fat.