Best OEM Boxster color? Why, the color of * -MY- * Boxster S --- Speed (formerly Porsche) Yellow.
When I was looking to buy a Boxster I originally wanted Arctic Silver. To me, that screamed CLASSIC PORSCHE! Porsche racing, James Dean, and all that.
But then I decided that I liked Seal Grey (Gray?)
So, of course, I bought one in Speed Yellow.
Go figure!