The 37R is the 'racer' version with a less-fitted out interior than it's 'cruising' sister the 37+ and the 37/40. So if you're in love with the look, and you're interested in cruising look for the + version. There may be cockpit differences too, not sure.
Spend some time on Yachtworld and Google images to compare them. Here's an example of the 37/40. Great looking layout.
View Boat Photos - YachtWorld.com