Dispatch Combi swb.
Loads of height was wasted above the bikes, so made a phenolic plywood shelf (part of an old van floor liner) 2/3 the depth of the “boot” (with supporting steel tube underneath). Shelf height so my saddle just clears the roof.
Paranoid about handlebars smashing side windows, so bought a single Fiamma bike rack rail and wheel supports. Cut in half to hold just back wheels (plus rubber ball on end of bars).
Kids are much older now, so can just squeeze 4 full size bikes on the shelf. All camping gear, bags etc underneath and behind shelf. Been to Switzerland, Austria, Norway, Sweden Denmark etc so has been worth the effort.
Made the bulkhead myself as wanted kids and luggage separated.
Everything bolts to existing mounts (already there for 9 seat variant) so my insurance company was happy it wasn’t a permanent modification.
Extra bolt in tie down loops from ebay (Transit ones I think)
I think the most we’ve carried is 6 bikes and 6 adults plus luggage for a weekend tour 🙂