Has any manufacturer made 21" MoPac passenger cars?

No one has yet produced 21" MOPAC passenger equipment or I'd have a hundred by now.

I'm hoping Golden Gate will offer some in the near future as I've been chomping at the bit for these a long time. The MTH ABS 18" cars are fine but incorrect for the MOPAC.

Had K-line survived I'm confident MOPAC 21" cars would of been offered eventually.

Repainting is not an expensive option if you do it yourself.  Get a $100 K-Line car to practice on.  I laid in a supply of those with every intent to repaint - so far I haven't gotten to it.

All you need is an inexpensive airbrush, an air source, some good paint and masking tape, and a little patience.  Those stripes can be done with Pilot pens and a straight edge.  When doing yellow, be sure to use white first.  And when using pens, let everything dry for a week or so before attempting any striping.  As I understand it, La Belle will do decals for you.

Have not known of any 21" cars, the longest I have seen are 18" MTH, such as  

20-6667, M.P. Sleeper Eagle Flight.