The private market is dying. Less people own their cars outright so have to chop in or return them at end of lease. Houses/flats have less spare parking. Continuous insurance and tax causes issues. There have has been an explosion of car buying companies.

Basically, for many people, selling privately is either impossible or not worth the hassle.

In my experience many cars run better on higher octane fuel and not just the sportier ones. I believe it is because their ECUs are calibrated to allow for this fuel so the manufacturer can then get better pollution figures in government tests. Our automatic 1.6 Nissan Note likes 98 octane fuel (preferably VPower) and changes up gears earlier due to the improved torque and accelerates better as well. Add to that the increased MPG and the extra cost is easily justified. Of course the car goes on 95 octane but the lower performance and MPG is noticeable.

Given the price of (for example) Shell v-Power is currently about 10-15% more than supermarket Ron95, somewhow I doubt if a standard car will achieve an mpg boost of the same. Note that it doesn't boost mpg AND power/torque at the same time, just one or the other.

Even in sports cars, the effect, whilst noticeable, is not huge, and certainly not the min. 10% which would make the higher price justified. For sports cars that are supposed to run on super, then the higher stress on the engine and better performance is what such fuels are used for....

Perhaps more likely that Louise has responded to a different thread by mistake. Her original is in the Legal section.

But it really doesn't matter! ...

How about the Nissan Note 1.6 auto? Fab Nissan engine mated to uber reliable TC autobox with overdrive and lockup. For a small car they have fantastic interior space.

I have a friend who has had 3 of them with no issues whatsoever. Real life economy was generally way better than expected usually getting mid 40mpg....