I'll try to answer a few questions here:
Can you tell us the specs on that wheel? Presumably 15x7, 5x98? ET? and of course, cost.
Yes, these are 15x7, 5x98, ET25. They are $279.00 per wheel, sets of 4 only.
Will you be providing 4x98 pattern as well?.
I would be willing to special order Alfetta wheels but don't stock them. The price would be the same as the 5 x 98 version.
2. The original A-1's had issues with structural stability on the racetrack with slicks. Are these any stronger?
3. Are the centercaps available separately? The centercaps on the original wheels were had a tendancy to fall out and they go for a small fortune on Ebay. You could probably sell replacement caps for the original wheels.
4. The casting marks on the wheels do not match the originals. Are these made by Compomotive?
These are about 18 lbs. on our UPS scale, from memory. I'll weigh one again tomorrow and correct myself if that's not accurate.
The issue of the original A-1s cracking is a complex one; the thing that needs to be remembered is the problem didn't pop up until they were quite old wheels, and nobody knows how many wheels are actually affected. I would bet these are improved, as the issue is well known, but having said that they are a cast aluminum street wheel and will never be as strong as a forged motorsport wheel.
We don't have caps separately, and I don't know that they interchange with original wheels.
These wheels are replicas, made by a well known manufacturer. They don't say Ronal on them, however there was quite a bit of wrangling needed to get permission to produce them so they are not "unauthorized".