This might be intressting for cockpit builders. Leo Bodnar (developer of the BBU863) come up with a USB car instrument cluster controller. The idea is to use an unmodified car cluster, currently Audi is supported BMW is on the way. Well ppl did something simillar before, but in very complicated way with rc-servos and stuff illepalland by RS232.

Heres a video showing the cluster and rfactor, and the thread at RSC.
LFS cant supply the needed datas, can it?

Can't it be done with the InSim commands. I think you'll get a better answer in the programmers forum.