Steam, Tracks, Trouble & Riddles (S.T.T.&R.) is a single player adventure mod, based on source engine (Orange Box) by Valve. It combines two types of game play: an adventure game with complex, 3D-interactive riddles in a fantastic environment and a simulator for track based vehicles.
New props for the world of S.T.T.& R.
I like the concept as there were not many variations of ruined vehicles in HL2. This also greatly fits the time period and style for this mod. The only negative that I can see on it, is that the texture doesn't quite fit the model. I would try turning down the amount of scrapes on it to get a more realistic beat up effect. Kudos, on the great looking model.