I did a search on Youtube, so here are several small discoveries.

FIA GT

Rnd. 1 Zuhai 2007: Race footage - 9min 56sec

Rnd. 4 Monza 2007: Porsche 997 GT3 RSR #99 onboard - 8min 34sec

Rnd. 5 Oschersleben 2007: Porsche GT3 RSR #99 onboard - 6min 04sec

Rnd 5 Oschersleben 2007: Amateur race footage - 8min 39sec

Rnd. 6 Spa Francorchamps 2007: Race Footage part 1 - 10min 15sec

Rnd. 6 Spa Francorchamps 2007: Race Footage part 2 - 10min 07sec

Rnd. 6 Spa Francorchamps 2007: Race Footage Part 3 - 10min 28sec

Rnd. 6 Spa Francorchamps 2007: Aston Martin DBR9 #33 onboard - 6min 35sec

Rnd. 7 Adria 2007: Porsche GT3 RSR #99 onboard - 9min 22sec

Rnd. 7 Adria 2007: Race footage - 9min 55sec (no sound)

Rnd. 8 Brno 2007: Race Footage - 9min 55sec (no sound)

Rnd. 9 Nagaro 2007: Race Footage - 5min 20sec

Other stuff

FIA GT3 Belcar Rnd. 3 Spa Francorchamps 2007: Gillet Vertigo GT3 onboard - 4min 57sec

Silverstone South Private test: Tech 9 #99 Porsche GT3 RSR - 1min 13sec