Perhaps not a fantastic solution, but if any of you people suffering from issues use regular unleaded, it might be worth trying a few tanks of Shell V-Power or equivalent premium fuel?
I am convinced that it provides a little bit more poke when pulling away, I thought as much when we used to have our 1.2 500.
I agree. On 95 octane, my 1.2 is less efficient and returns about 48mpg. On higher octane fuel such as v-power it returns 50+mpg.
I do also find that it can kangaroo first thing if I cold start it and try to drive away immediately. After it warms up a little, it doesn't kangaroo at all.