x type ads with 'DPF' in them - why is this featured

[griffster]

i know what the filter is, but why promote it in ads?

[Doofus]

Because not all X-type diesels have a DPF.

[Josho]

Because it was a big thing for emissions.

Personally I'd rather have one without.

[griffster]

agree on observations, however, given that most folk think they are so disadvantageous they have them removed....seems odd to waste Headlines space? - only seen this on X Type ads