Yes, welcome to LS430/Celsior ownership! What you have is standard Japanese spec. The rear windows are dark due to hot Japanese summers but are not removable as mentioned, it's simply dark glass. You get used to it and its not a problem. You likely don't have a sunroof for the same reason. Mine is exactly the same as yours, same colour, same gold badges. Apparently the badges are 22 carat gold plated! I've more or less got used to the Japanese display, although oddly some of it is in English! I took my sat nav disc out to stop it speaking to me in Japanese every time I started it. And like mine you have the 6 spoke wheels which weren't available in the UK. How about some interior photos? Do you have the Celsior over mats? And do you have a sticker showing a cam belt change? The Japanese often put the sticker just inside the bonnet at the front rather than the engine bay.