Unfortunately I can't comment on Multivans/Shuttle/Caravelles, but I can tell you, you can no longer order side airbags for Kombis or PVs. I have them in my T6 but couldn't have them in my new T6.1. I have seen Transporters in NCAP testing, and they did ok, but only ok. I think the best you can hope for is sheer mass and height , winning the day, and hopefully never encountering a side on impact.