The time limit will probably never be removed, because there are some problems:
- the "extract.exe" which was used to extract the previous "GTx.VOL"-files doesn't work on this version. It seems they have changed the file format. Unfortunately extracting the "GT4.VOL" is vital for making changes to the demo.
- there were two BMW demos, one with and one without a time limit. Only this made comparison of the two versions to find the differences concerning the time limit possible, which allowed the clever guys to remove it. There is no unlimited version of this demo though, which might make a removal impossible.
Now I'm not saying the limit really will never be removed, maybe there are other ways than the one used before. But it may well be that it really is impossible.
Cheers,
the Interceptor