Wrong, there are many different hard coatings you can apply to steel, such as DLC (diamond like coating) ..... you wouldn't want to be paying for it as an aftermarket opperation though!!!!
This is all very interesting stuff.
When I did the layout for Mako I used a fair amount of rear driveshaft angle to help with the rear squatting. There was also a little on the front, that was there to help limit the effects of the one-way diff (as the car sat under it's driveshafts it helped lift the nose and thus limit the grip from the front end as the diff locked),we had to run as there was no off the shelf shaft one-way and the one I planned never made it off the CAD system as I didn't have my own lathe or mill back then.
The combined effect was to make the car quite reactive to throttle inputs on the front and not so at the rear ..... this resulted in a very smooth drive so the car could be thrown around with out risk of it biting.
Who is going to unlock the other cans of worms surrounding the black art of handling???
By the way the most useful thing you can do when racing / testing is get somebody with good descriptive skills to watch your car and explain what it is doing, even better video it so you can see. When you don't you run the risk of chasing the wrong thing ... as happened to me at Worksop.
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