From what I have been able to find out, the '68-'72 Hakosuka Skylines were not raced outside of Japan. In fact, with one notable exception, this model Skyline was not even sold outside of Japan. Now, I have found that Nissan did in fact export a version of the four door Hakosuka to Norway. It was called the 2400GT there, not Skyline. It had a 2.4 liter six with a single downdraft carb and a four speed. But, here is the really interesting part, the car was left hand drive. Apparently they sold only a few of them. I have only seen pictures of one. The guy has done a decent resto on it and had posted a fair amount of pictures. I'll try to find the site again, it was quite a while ago when I ran accross it. Anyways, back to the subject at hand. From what I have found, Australia first got the Prince Skylines around '65 or so. After this, Skylines were absent for the Hakosuka model. In '73 the Ken & Mary model was then sold as a 240K down there. All of the racing information seems to show that there was little to no Factory support for racing these cars in Australia. Most of the efforts were for teams in Japan. And here is where they were truly dominant. The first Hakosuka was the four door in late '68. Nissan raced these quite successfully and there is a fair amount of documentation on them beating much more expensive and exotic machines. In fact, the Prince Skyline GT-B's were also very competitive. I have a video tape of one of the races in which the GT-B Skyline is giving a Porche (908 I believe) all it can handle. The two door Hakosuka was released in late '70 and went on to claim 50 first place victories in a row. No other car at the time was this impressive. The GT-R name became legendary in Japan after that. The '73-'74 Ken & Mary GT-R carried on this success until the S20 engine was no longer produced, thus ending the GT-R. Nissan was so adament about the GT-R name, that is was 15 years before they felt they had a car worthy of the name again. And we all know how that story goes. The R32 GT-R, to my knowledge, is the only car that has been outright banned from racing on three continents. In Japan there was no car that could compete in a fair race. In Australia Ford and Holden did everything they could to hinder the car, unsuccessfully I might add, from limiting boost to forcing the Skylines to run with more weight until they finally eliminated the racing class completely and created the V8 Supercar series instead. In Europe, the GT-R not only set the track record for a production car at Nurnberg, but spanked Porche and BMW in their own backyard. Again, other manufacturers lobied to have it banned because they were unable to compete against it, even after they also tried to hinder the car. Now, I'm sure it is obvious that I am a bit biased toward the car, but tell me how many other cars can claim a history filled with this much victory? Not many.
Brian