How do I persuade Swift to ....

I would love to persuade Swift to produce a top spec van (Challenger/Eccles SE level so Alde etc) in the Sprite Major FB body .... why?  Well it gives the fixed bed end washroom layout in a slightly shorter van .... 17ft4 instead of 18ft4 in the current 570/Ruby SE ....again why?  Well our current van is 17ft2 and we can comfortably turn this at the end of our drive ... we couldn't do this with an 18 footer  AND the 18 footer is a bit heavy for my Skoda Yeti while a shorter one would be lighter AND although we love our fixed bed in the Benmore we are missing our end washroom a great deal.

Frustratingly Swift produce the ideal size/layout of van (Sprite Major FB) and the ideal spec (Challenger/Eccles SE) ... but sadly the twain do not meet!

Had a good look at the Major FB today as I was concerned loosing a foot in length might compromise the van somehow but it doesn't .... in fact it is very hard to see where the length has been lost.  My dealer agreed ... and felt there was a market for such a van (albeit maybe not a huge market!)

Question is how do I make sure Swift hear my views and come to the party? I've mentioned it on Swift Talk and none of the staff have bitten!

Suggestions on a postcard please? 

I find it extremely frustrating that all caravan makers think that anyone who wants a more compact van is happy with entery level spec.  With car makers like VW and Audi bragging about loosing 100KG off the new Golf/ A3 something has to give.