Here are some pictures of the wheel, thanks Alan, they will look great in a car.
Unfortunately, I am able to obtain only open type wheel nut, I think works rally car has dome type, works race car at circuit has open type.
Anyway these nuts are so special. The outer flange does not scratch a hole of a wheel, inner nut is turned and secured. At an interview of " Nissan graph " , a team manager Mr.Namba said " the nut worked so well , a wheel can be centered without tool. Nissan is going to get a patent for the nut ".
I will put a hub cap, which is used mainly Skyline GTR, but I see some other cars use it too.
kats