I'd go with the black. Though, both Silver and Black go well with any car.

If it was for motorcycle use, I'd say get one that matches (what I do is get black GEAR, and a helmet of any color of my choice. I cant' stand matching 100%, I feel like a fawking power-ranger -- but matching the helmet or having a "cool" helmet isnt bad), and get the rest of your gear black. But for the car, go with the Silver or the Black, whichever you prefer. I say black.