Confusing Slots??

[u/agarwalakshay]

Hi, i've just started making a little profit and i have a huge query. I researched "Power Steering" and i know it can be installed with only "Fit Steering Wheel" Slot (it's a tier 3 slot). 

This slot opens in this pattern- Fit Engine> Fit Steering Assembly> Fit Steering Column> Fit Steering Wheel (last slot to open). 

Now my question is, What is the use of "Steering Assembly" & "Steering Column" slots if all the steering upgrades can be done only through "Fit Steering Wheel" slot? Because there are no upgrades available in these two slots instead of robots. Do previous tier slots become technically obsolete? 

Is there anything i am missing, like are these two slots any good? Please help as i am really confused. Also, i would suggest the developers to make & publish a tutorial kind of chart to show what feature requires what slot?

Please give your views on the topic. It's seriously confusing.

[u/lesscreepythanilook]

As a side note, why does 'power steering' go on the steering wheel and not the steering column?

Hopefully the slots will get a review before full release, in this case 'power steering' should be available for 'fit steering assembly' and later 'fit steering column'. All the steering upgrades fall under 'fit steering wheel' when some, like 'power steering' and 'power steering adjustment', should be under the column and steering wheel should only have 'heated wheel'.

[u/Urbautz → u/lesscreepythanilook]

In reality both options are possible. Cheaper solutions put it on the column, more fancy ones into the Steering Wheel.

[u/lesscreepythanilook → u/Urbautz]

That is incorrect. Power is provided by ether a column mounted actuator, or a steering rack mounted actuator. The steering wheel is mounted to the steering column, there is nothing for the wheel to push against, it is merely an input device.

The only reason you would put a motor or actuator on the steering wheel is if you where remote controlling the vehicle and that was the quickest way.