Based on some input from KFJ I think I will go with the Enkei 4645804925BK J-SPEED Black with Machined Lip Wheel 15x8 4x100 +25mm (14.6 lbs) The design seems rugged for our Michigan roads and I like the look. I have a set on my 1984 Audi and they survived my 600 mile weekly commute so far although they are not as wide. At Summit Racing they are $158 each. I will buy an extra set for when they go obsolete.
Later I will probably get a separate set of track wheels & tires.
QUESTION #1: What lug nuts should I buy? Best quality and version??? I have concerns about the various aluminum nuts offered. The wheels use Lug Nut Seat Style: Conical seat - 60 degree
QUESTION #2: The wheel hub Center Bore Diameter: 2.860 in (72.60mm)
What is the size of the Miata hub? Will I need an adapter ring?