Hello from Japan!

[banpei]

Ah, now I see what you meant with a different interior.

The steering wheel belongs to the GT Apex and GT-V spec. This is an example of the GT-V interior:

We also got this steering wheel as standard in Europe.
Usually, you will see the leather variant of these steering wheels in the photos, but that was only when you purchased the Sports Package (available from March 1984).

I also see I made a mistake with the interior colour code. The grey interior (kouki models) has the 2 as the first digit (for example, GX21), and the pre-facelift only has grey interiors outside of Japan. The correct colour is Maroon, so that matches your dashboard.

In the brochures, the seats are generally referred to as the "sports seat".
What Carina did you take the seats from? The third-generation RWD? That generation also has sports seats, but those are not similar to the ones in the picture.
I also found that the seat rails of the Carina are just a little bit wider than the Corolla, so they need some adjustment to fit.