I recently bought a new secondhand small Euro diesel car, and had numerous debates with several people re. its safety for my kids vs my large 4WD Toyota Landcruiser.
My approach was to get something 5 star rated, with curtain airbags. Head injuries from side impacts with 4wd’s being a known problem with small cars.
Here are some vids I found that were very enlightening.
Amazing Smart Car Test – note the speed!!!!
Old small cars – nothing left – scary
I’ll stick with my new 5 Star ANCAP or EuroCAP thanks, you can bring your 70’s whatever.