White dials and black dials?

Hi all, you’ve probably heard this before but I’m changing my car after christmas for an mx5 and have been looking around at some. However, I hadn’t realised there are so many different versions to choose from! First of all, what’s the difference between a model with white dash dials and one with black dials? Is one an import?
There’s a dealer near me selling a 03 plated, black 1.6 with white dials for £4000, does this seem too cheap?