San Marino Red is on the 7th gen coupes. If there's still one on a dealer's lot, you can get an idea of the color. Acura uses Milano Red. Very similar but just a bit darker.
I definitely have my color preferences but a car's shape and personality will influence what I think looks best on a vehicle.
Red is a good color for the V6 Coupe. Its a bold color but the V6 Coupe can back it up - it will be quick enough and its a great looking vehicle. Plus red reminds me of the first Preludes I ever saw back in the late 80s. Black would look sharp, too.
If I got a 2.4L Coupe I would go for something more sedate like the Polished Metal or Silver.