I'm no expert, but hopefuylly this might help a bit.
If you look on 7zap you can see via the diagrams a lot of the differences, but some are more subtle.
You should be able to figure out from your V5 as to what the load rating of your van is, and that along with L1/L2, double cab (DCIV) or not, plus engine power will narrow it down.
The Tourneo has full load length floor, with heating ducts in it. Full length head lining too, again with heating ducts. The rear cabin heater is inside the rear tailgate on the left.
Windows all round, rear speakers, rear side trim, folding / removable seats, etc.
Below the floor the Tourneo has slightly different chassis members, to create additional support plus strengthening for the seats.
You could order air suspension for them, plus different trim level, that weren't offered on the vans.
In terms of running gear, I believe it is all the same as the van, the Tourneo is load rated the same as a van is (310/320 I think).
Electrically there are differences, but I'm not entirely sure what they are (there are differences between a DCIV and normal van too, such as c/l control of side doors)
Yes roof racks will fit both, as will things like side steps, but you need to check whether L1 or L2, as mounting points may be different.
For things like swivel bases, all the single seats mount the same.
Have a read of the etis modifiers info, this gives details of how to connect additional loads, and also how to convert from single to dual battery if you wish to. There are a bunch of threads about this on here too.
Have a good old web search and autotrader too, compare the various specs and pictures. All should then become clear(er)
For service intervals, have a look on the ford site, pretty sure its on there somewhere.
yep, here:
https://www.ford.co.uk/content/dam/guxe ... 191108.pdfNo idea what the service covers though.
Hope that helps.
2019 Custom Sport DCIV. Landed and loving it