Curious About the Manufacturers Championship?

NASCAR scores the championship race for manufacturers in a very interesting process.

The winning car earns that manufacturer 9 points.
The second-highest manufacturer receives 6 points.
The third-highest manufacturer receives 4 points.
The fourth-highest manufacturer receives 3 points.

I find that interesting that the lead car of that manufacturer gets points, but subsequent cars behind it doesn't.

Food for Thought:
What if a Chevy wins, followed by 5 Fords, then 3 Toyota's and then a Dodge and then more Chevy's? Obviously the Chevy's would be at the bottom of the pack in points.

On the other side of the coin:
But this system does seem to buffer the fact that Chevy makes up a large chunk of the field so possibly this levels the math a bit. Or maybe they should divide the points by the number of cars of that make in the field. That would statistically help smooth out the numbers advantage.

Manufacturer Points As They Stand Now

RANK	MAKE	POINTS	BEHIND	WINS
1	Chevrolet	198	Leader	10
2	Toyota	197	-1	10
3	Ford	193	-5	9
4	Dodge	138	-60	4

Looks like Dodge needs some work. Oh yea, we already knew that! But at least this year, with Toyota in the mix, there would appear to be parity in this points table!