[What did you drive before your Celica?]

Last car I owned before my Celica was a Rover 200 which started off life as a little 1.4, but that was replaced with a 2.5 V6 out of a ZT190 by the end of it's life. Great fun car to drive around a track, not so much fun to use on a daily basis.

 

 

[Ferodo DS3000 pads for OE caliper]

Redstuff are not really a track pad, you'll want yellowstuff as a minimum for that really. Standard brakes are going to fade though, just not big enough ideally for track day work. I had mine starting to fail after 15 mins at Silverstone with yellowstuff pads, probably would have happened with most pads though.

[Selling a car... Test drives?]

You can get day insurance for when you want to test drive a privately owned car, I have done that in the past if I wanted to drive one. Obviously if you are buying from a garage you are normally covered by the garages insurance. I personally would want proof that they are insured to drive the car and have cover for any damage they happened to do to it, if they had an accident.