might be engine warming up and limiting power till its settled, if you start the car and instantly put your foot down to the floor in neutral it only revs so far then a couple of seconds later it will rev all the way.
In neutral the Fiesta's revs are limited to 4000 RPM.
Anyone have any idea what this letter is all about ?
I've not chased it up yet but am guessing it's a discount on a new car. Shame if it is cos I just purchased a new Fiesta (5 months ago) from a different dealer through car wow.
Just accept that it's not worth the money / hassle getting anymore power. Sell it and buy a more powerful car or stick with what you've got till you can afford to sell it and get a more powerful car, simple