it would be pretty nice to have a little tooltip show up when hovering over a part, maybe middle mouse click could open/expand it, and it would have a small description, show the "price", "author", and what mod the part comes from (if any). would just be another line of text in the jbeam "tooltip" or "description" example: Code: "information":{ "authors":"BeamNG", "name":"Sport Intake", "description":"A more free-flowing intake for slightly more horsepower and torque", "value":250, } this could add some education to the game, especially on the more technically explainable parts like the ECU, performance internals, and torque converters. however, i feel that the main place this feature would shine would be in the wheels section, giving a slight overview of the style of wheel ("a 5-spoke star-shaped 15x9 wheel, made by civetta"), and maybe even a small preview of the wheel. also, showing which mod the part is included in (a simple .zip file name would do just fine) would REALLY help in a lot of situations.
Being that we are getting a new UI, I hope to see more than just a tool tip. Some parts (wheels for example, as you mentioned) really need an image. Performance specs and in some cases a part description is also necessary. Preferably including a little humor in some descriptions.