Licensing issues

[mym]

if you really want to do something useful contact the upstream author (in this case, estoril that is, carrera.4) on racesimcentral forum http://forum.rscnet.org (look him up in the members list) and ask him nicely if he is willing (and/or able) to release the track under some free licence.

Indeed this may be the best solution to try to get a 100% Free version of Vdrift, without having to design new car models and tracks.

at the same time you also have the freedom to create a track from scratch and release it under a free licence with vdrift could then package. but that's a lot harder than just talking about software freedom....

Of course it is.
However as content designers are in general not really aware of Free license advantages, discussion may help things evolving.
That's what I'm trying to do, and I'm really sorry if my words can be understood as criticism, this is not my intend at all.

I see there are 6 car models and 3 tracks, thus several authors to contact.
I'll see what I can do.

OK, so I think the verdict is that the source code (the actual VDrift application) meets your definition of free software, but the data package does not, although it is free to use (just not Free to use, right?).

I agree.
Nevertheless, I think data are close to be Free.