In Reply to: Re: recirculating ball v. rack and pinion systems posted by Skip on July 26, 2000 at 22:26:59:
I think this question has been asked about 10,000 times already :) In any case, yes the R/P system is more precise. The Z8 is the first V8 BMW with one. True, while the 528 is R/P, the 540 and M5 are R/B. But, let's get this straight, they could have done, but decided not to..lazy perhaps? It didn't fit properly, but they could have got it to fit. I won't go into the technical details, but the R/P gives more direct steering input than R/B which is a ball mechanism that gives feedback to the steering based on ball movement. And, typically, the R/P system weighs less than the R/B...this accounts for part of the fat weight on the M5.