What phase is my peugeot 306 ???

[Toms306]

PH4 is made up. The only difference I've ever noticed is the bigger head rests which is more than likely a change due to safety reasons.

Phase 4 isn't made up. When you own several X/Y plate 306s and then go back to a W plate it's definitely noticeable, there are ther small things that I missed off the list earlier. It is mainly a safety upgrade as you say...hence the air bagged seats as well (Meridian leaf leathers for definite don't have 'bags until this point). And probably the bigger brakes on the less powerful models as well. I'm guessing there was some safety regulation update late 2000 so was in full force by X reg...there's no reason they'd upgrade these things at fairly large cost to them for just one more year of production unless it was absolutely necessary.