I have seen this thread differently posted...it is always interesting.
As both crankshafts are goofy, the nascar is simply a bigger engine made. they both have shared journals and completely retarded.
here is the f1 crank. it is appealing to me as it is close to a benz...except, it shares journals. I drew a benz v8 crank once, it looks similar this, excpet where there is shared journals it is a benz, no middle main bearing between them. That would be the most powerul v8 in the world...like 3 main boxers to four cylinders.
here is the common v8, this one is bimmer.
benz crankshaft v8 on Flickr - Photo Sharing!
above is my benz v8, now strangely showing up in a world wide web search as the only. I made the first few frames of the animation. it is more amazing than my imagination to look at. Note there is no counterbalancers, it is self balancing like a real 3 main boxer...in fact if you can decipher it, you can see two 3 main boxer cranks, and how I put them together...all self balanced. all cylinders have an exact match mirrored in the rotation. This, in theory, is the worlds greatest engine never made.