Underground, but not Need for Speed - a street racing game with a tuning system has been released on Steam

You will have 20 authentic and meticulously detailed cars at your disposal — from sedans and compact cars to sports cars and muscle cars — which can be turned into true works of art. But tune wisely, because a car's behavior on the road depends even on the smallest details. Each car consists of dozens of parts that react realistically to collisions with obstacles. Replace, disassemble, and reassemble thousands of different interactive elements to fulfill clients' requirements or create the car of your dreams.