You are totally welcome to have your opinon Rob
To answer your question of if the insurance quote was the reason to keep the car then no

despite all the back and forth moods ive had with this car, i do really love it to bits. It was my intention from a month or so after buying the car that i wanted to get into a form of light competition. Having the car changing moods was really down to the money side of it after being shafted at work over my wage and having debt meant that i couldn't get things changed fast enough when they went wrong - hence my anger towards the car.
As for the competition side of things, you'll be surprised at just how many people in the UK, US and Japan use mk2 MR2's for sprinting and autotesting. And they are actualy contrary to belief, a very good car to use with the right mods

plus i've become so used to throwing an MR about it makes things more fun.
Quite rightly though as you've pointed out is it's age, and i do agree that it is at the end of the day a 17 year old car and i've paid out to have lots of major parts replaced to keep it on the road - But, the good thing is that i've already had lots of new parts fitted so half the job is already done and apart from the drivers door, there is zero rust and rot. If i bought another car to do autotesting in, to me would be false economy as the chances of buying a sound car for the money i'd make on the MR really are 50/50 since i might make myself worse off. So already having the car at the stage it's at would be silly to give it up now.
But like i say, totally welcome to your opinions and i have taken them onboard
edit: also i'll only realistically be doing half a dozen sprints and the same with autotests per year to see how we go