Banpei's two door panda Trueno from Japan

[banpei]

Thanks for sharing those photos, those are very helpful! I must say, both look great on your car. Also, these have now convinced me that mine should become silver as well!
I did put the wheel on wooden blocks to compress the suspension with the weight of the car, so they were fully loaded.

Oldskull also sent me his specs, and according to that, mine should fit without an issue.
The wheels were sold as SSR Formula Mesh 7.5J Type B, and no offset was mentioned. Type B means they have an inner barrel of 4.5 inches and an offset of 6. This is where the offset of 6 comes from, just me reading the SSR spec sheets. But your photos lead me to believe these wheels are definitely not Type B.

There are no marks on the wheels that could identify these as Type A, B or C. Usually there are SSR quality control stickers with the width and offset. It could be that the seller measured from the outside and then assumed it was a Type B, while it actually is a Type A. The Type A has an inner barrel of 5 inches and an offset of -6. This would be much more in line with your Watanabe set, and the Wats at the front appear to be closer to mine.

Another possibility is that these wheels actually once were Type B, but have been rebarreled to 8 inch wide. The inner barrel may still be the same, but the outside has changed. This could make them wider than the original and change the offset. I don't think it's likely to be more than 8J as the photo of these wheels next to the 6.5 inch Impul Mesh wheels doesn't show a dramatic difference in width.

So, in the end, I'll just have to measure them myself and then calculate the actual offset myself.