Finishing the seat support/shell (what passes for the "body" on this car) took some time. First I sprayed it Gloss Ivory, then used Tamiya tape to mask off the depressed areas...
Then I mixed up a shade of red using acrylic craft paints that matched the color of the fenders that I had sprayed with Rustoleum, and brush painted the raised ribs. I brush painted with acrylics instead of just using the Rustoleum spray because I was afraid some of the red would seep under the tape and ruin the piece. Acrylic paint is pretty thick, so it won't tend to seep into minute crevices, plus by brushing it I can put down a thin first coat to "seal" the tape edges, than add a couple of heavier coats to get full coverage. Finally I sealed the acrylic red with a coat of Future...
Once everything was dry I carefully ran the tip of a brand-new blade along every tape edge in order to cut through the red paint and Future, so that when I pulled away the tape I would get a clean edge with no paint being pulled off. Then a added the pinstripes using the same pinstriping tape I used on the fenders (it shows up in the photos much better on the Ivory than on the red fenders:
The last step will be brushing on a few coats of Future so seal the tape stripes.