For pictures coming from a good source (dvd, good divx, ...) if the picture is sharp, it is better to keep its size, i.e 720 for a DVD.
If it is blurry (zoomed picture, VHS, TV, ...) then it is better to reduce it a little, e.g. 640 or less.

Yes, strange ratio.
So I tried some ratio, and 2.20 is most natural for my eyes.


Simply, that why already wickey post 640 x 272 pics.
I've converted those both 640&720. I'll list 720width if it is better.
(strangely wickey's ratio is 2.35 and correct. another ratio release )

That looks better, though that 2.20 is strange as ratio
Btw why not keep the full width (720) of original images?

Information about ratio is 2.20:1 by IMDb http://us.imdb.com/title/tt0066206/
Is it looks correct?
*640 x 291 (ratio is 2.20:1)

Several vehicles that were missing when the movie was added the other day (I had started this a while back but never finished, so with these the movie should be complete now.)

Dodge WC54 (*)


1953 Unknown M44 (**)


1951 Cadillac M41 'Walker Bulldog' (***)


1944 Cadillac M37 (**)