You're getting hot air on and off so I assume it's something wrong with your sensors. First off try holding down the cold button for about 8sec/until a sign 'FC' comes up. It should ignore all sensors and push out the coldest air possible. See what happens then.
I agree, it's a pretty stupid way to measure it. Maybe it's just to make to mod sound more 'hardcore'? "I'm getting gaurds that are 150mm wider", but they're really only 20mm or something.
I guess some people started off not being able to afford the GTR and then purchased a GTS-4 or something and then converted it to a 'fake' GTR over time.
To get some Jap design wheels, it's probably best to look in the traders section for some secondhand wheels or they can probably order some in for you.
I want the gold badges
I'd be scared of people trying to steal them from me though
Yeah, you can get a type m bar from a wrecker. Try keeping an eye out on here aswell.