Just found this Japanese Celica XX Advertisement on youtube:

As you can hear, the music is Twilight by Electric Lights Orchestra. Apart from the fact that I'm an 80s (electronic) music fan I immediately recognized the main theme from the Densha Otoko J-Drama.

You can view the opening credits here:

Funny they used the same theme for both videos! So now there is a link between the Toyota A6 platform and Densha Otoko! ;)