Ford 'Model Year' 2004.5 etc

[Bobbins]

I've noticed new Fords often are 2004.25 or 2004.5 etc 'Model Year'. It was a Fiesta we were looking at, but I've noticed the same on other Fords.
A Ford dealer told me there's often no actual difference in the vehicle, it's more related to the special offer available. I would have thought it's more likely to be the other way around.
Is there anyway you can tell:
a) Which version you're looking at, b) What the latest version is? c) What the differences are - the brochures seemed way out of date.

[Nighthawk]

don't feel to concerned m8, the model year changes all the time with no changes.

[.Mark]

Any dealer should tell you.
I just took delivery (well in February) of my new company Mundano Ghia X, 2004 model year.
Differences over the 2003 are auto-lights, auto-wipers, climate controlled seats, rear indicators are clear instead of orange, the list goes on.

Any dealer worth their salt should be able to tell you, if not I'd be going somewhere else!