We used Automotive Materials with more than 3 million triangles and 2 million vertices for each car model. Had illumination with different processes for best VR optimization.
User Interface was divided in two
1. Movement through tele-transportation with room-scale for better car scale sense.
2. VR Touch Interactions by blueprints and collisions that made possible open/close car doors, open/close hood and trunk, turn on/off interior/exterior lights, change vehicle exterior color, change rims.
Project was made with modular levels, each vehicle was an independent level which can be accessed through main menu and what maid it possible to have better performance and quality visuals with multiple vehicles.