My first 106 GTi made 141.3bhp @ fly on the rollers, it was totally standard apart from an induction kit!
Now we all know how accurate RR's can be, so I don't put too much on the actual headline figure being correct, it was 112.9bhp @ wheels which is more like 133bhp @ fly, but compared to other 106/Saxo's on the day, mine was making more than some modded ones!?
Went like b*ggery too, was as quick as my mates mk1 172 up to about 90, and that's no joke, it flew. I've had various quick cars (306 Rallye, Clio Cup, modded CTR, etc) so I know quick cars, and it was quicker than it should have been.
As others have said... good & bad examples.