cram this in your brain hole:

this came up in a discussion on my home board involving a custom framed 300zx project.

the builder recently found that the balancer on his engine and his steering rack are going to conflict, so he's trying to decide between losing some ackerman by pushing the rack forward, or building some big assed bump steer correctors to lower the rack.

i think we've decided that the ackerman effect is more useful at low speeds and tight turns, and for his track-ish car, it's not going to be a huge loss.

i started thinking about bumpsteer...and body roll....and decided that if designed right, you can use the two to create a dynamic ackerman. as the body rolls and loads the outside tire, the inside tire could lose steering angle. high speed corners (sweepers) see little body roll and are happier with a static toe out. low speed corners (tight stuff) see lots of body roll and are happier with a static toe in.

a design that created toe in as the body rolled could be the best of both worlds, but you'd be stuck with a static toe out and trying to sort sway bar rates and spring rates to get the car to roll just right.

and then you'd drive on substandard tarmac with low grip tires, and all the above math would go out the window anyway.