As a rule, I paint subassemblies as a unit. If the engine is supposed to be all (or mostly red, it's assembled and and painted red as a unit.
There are exceptions- for that red engine I just mentioned I might leave off the oil pain and paint it as a separate part because the sump may be too close to the bellhousing, and paint won't get into the area between them.
I REALLY like the '56-style trim, and that combined with the wire wheels and the brown paint makes for a clean and classy looking custom. I have to admit I never liked this car, but ... you made it look good. Very good!
Love it! I've heard horror tales about this kit, but looks like you pulled it off pretty well.
That he did-
http://selvedgeyard.com/2011/03/06/steve-mcqueens-mean-machines-the-1957-jaguar-xk-ss-green-rat/
If Revell came out with another version of their '49 Mercury custom kit, I wouldn't gripe if it came with a closer-to-stock-appearing body and/or if they put out a '51 version.
Sick, twisted, disgusting, and wrong.... in all the right ways.
Seriously, if I had the cash I'd do this in 1:1, just to see the looks on people's faces.
This is the current version- the one I used. The previous two Revell-Monogram versions are the same thing, aside from the decals and one being molded in blue plastic.