tokyo gtv purchase

please assist me.
may purchase this 1998 gtv 2l. turbo v-6 (corse). want to know if interior & dual exhaust is from the factory (broker reports not modified).

-54,000km, certified
-jpy 8.8 million (approx US$10,500)
-build plate intact next to shift lever

any information regarding corse edition gtv, or this engine (power rating, dependability) would be really helpful to me
if you can give me the link to another site for more information also would be wonderful.

thanks, gerry - tokyo -