I noticed that with this video, Exotic Eve's car has two exhaust pipes that are not the same size. it gives you chills. However, I watched a lot of boss videos but I never noticed that.
That and White Charisma has dual exhaust too. Simultaneously the big rear bumper exit + the driver door exit exhaust. I like to think one is the turbo back exhaust and the other is for the waste gate.
iirc it was like, lowest ride height, +11 steering, brakes was +5 or so (towards the back), spring +2, +2 and the damper was also +2 +2. i don't have the save file anymore to be entirely sure of this.
Last Power-Up and Body parts are unlocked once milage on currently used car is reached 1860 miles or 3000 kilometers If you don't unlocked all those especially in early game but afterv reached 1860 miles, you unlocked all power up and body upgrade levels instantly without progressing