want to drift ? - Welcome

[20vWill]

I'd just say to make sure that the car shell is solid and safe with any rust in load-bearing areas are fixed. New bushings (OE or PU) and fresh shocks are worthwhile too. A lot depends on the conditions eg wet or dry, but wet is by far the easiest condition to learn in as everything is so much slower and smoother.

A stock AE86 is a great car to learn in - no need for uprated suspension or a bucket seat when beginning in my opinion.

Easiest way to start is learning how to control a slide is smoothly provoking the tail to slide under throttle in the wet, and adding counter-steer and feathering of the throttle to control the slide SMOOTHLY.

You should also try and get the theory of weight shifting into your head and how braking, steering and throttle inputs affect what the car will do.

You could sit and type for ages, but the only way to learn is to know the theory behind it and apply that with practice to get a feel for what the car is doing and what different inputs (of steering, throttle, footbrake and e-brake) will do to the car's handling.