Q: Why does steering feel vague or numb in an older Model S, and what fixes it?

Vague steering usually traces back to deflection in the rubber compliance bushings, which lets the wheel move slightly under load instead of following your input. Swapping to sealed spherical bushings removes that play and gives the steering a direct, connected feel. We developed these lower arms on our Dark Helmet race car at Pikes Peak, and the same precision that helps on the mountain cuts the numbness on your commute.