Techland has released for
Xpand Rally the Car Importer Tools which includes Custom Cars Wizard (a tool for importing custom cars and allowing customization of cars parameters), Game 3D mesh exporting plugin that allows the use of custom objects (including cars) created in 3D Studio Max in the game, 3D Studio Max script that processes the car's mesh and prepares it for the use in the game and sample car mesh (3D Studio Max source file and XR custom car ready files). Be sure to grab both
single-player and
multiplayer demos as well.