I'm not exactly sure what you are looking for, but here are a bunch of Japanese sports cars from the same era as the fd RX7
-Nissan 300zx
-Toyota Supra
-Toyota MR2
-Toyota Celica
-Mitsubishi Eclipse
-Acura NSX
-Subaru SVX
Newer Japanese sports cars
-Nissan 350z
-Nissan GT-R (coming soon)
-Honda S2000
-Mitsubishi Eclipse
-Mitsubishi Evolution
-Subaru WRX / WRX STI
-Mazda RX8