Raydium 3D Game Engine

First, please forgive the lack of updates, but i'm quite busy with the new company and a few more things. I'm creating an online shop to sell linux games and we start the November 1 of 2005.
I have a pal working in the game of cars and he has asked for units... and i don't know wich are the current limits of visibility (by default or optimun) in raydium. But i noticed that importing the tri exported of blender slightly ignores the scale of the mesh in blender before exporting.

Which are the limits of raydium and for objects.

There's two differents things, here:

Units: There no optimum unit in Raydium, just keep "correct" ratios (for size, mass, speed, ...). For sizes, test6 and other demos are using something like "a car = 1 unit", for example.
As a side note, i'd like to say that using "realistic units" for a game is not a good idea (it's very hard to tweak), and the other important point is that computer's FPU does a better job when numbers are "around 1" (float accuracy is way better).

Blender and scaling: triEXP* export scripts exports meshes, not "meta-data". So when you work in "object mode" with Blender (and not in "vertice mode"), remember to "apply size/rotation" (CTRL+A) before exporting. The best way is to use only "vertice mode", I think.

PS: your "linux games" project is interesting