Something I been feeling this game lacks (it´s been the game I most play for quite a while now) it´s a well made (if it´s not proper, pls don´t implement it) glowing hot brakes and complete exhaust system (turbos included), with a nice gradient of colors (I think it´s from dark red to super bright yellow) based on the temperature. For reference I like the brakes of Assetto Corsa with Sol mod, and the exhaust from Assetto Corsa Competizione. I think with details like that the game would be perceived much more realistic, plus, the game has the best engine and brake thermal simulation I have ever seen, so thanks for this amazing game and I would love to see my etk with a glowing turbo, wastegate, and the exhaust tip from the manifold while doing a burnout or a race.
This game is far from being finished, and glowing things may be implemented sometime. Glowing things (mostly brakes) were suggested pretty often actually and it'll be a nice addition to beam.
I hope the devs are working on it and have some progress, but I know it´s gonna be hard and long to develop because of the better lightning system they added recently.