i drive my vios more than 3k rpm during the first 1000km, so far my vios still healthy. i think just drive it in considerable speed and it should be ok.

generally all mass produced car are able to cater normal daily usage. if you only use it for merely as a point a to point b transportation, you should not to be worry much about break in etc. just take a good care about the maintenance and you are good to go. and when there are wear and tear, replace it. some said that must not rev hard during break in period, some said that must rev hard during break in.. and both side got their facts to back their opinion

but if you start your engine, race it into sepang track in stock condition during your first 1000km then i think you should prepare enough money to cover for maintenance expenses later on.

and.. fiesta is a mass produced car, bentley, lambo and all those exotic car, well.. just leave it there. no need to think much about it. unless you are actually drive one.