Okay, so we're dressing up today's boiling caffeine solution-related timewaster in a smock of scientific respectability, but it really is interesting - and horrifying to - to see just how much difference an absence of passive safety systems makes.
What we have for you (courtesy of Speed TV's 'Stuntbusters' programme) is a 2002 Cadillac Deville being flung head-on at a 1962 Cadillac Sedan de Ville, each car travelling at 50mph. Okay, so it's hardly the Volvo Cars Safety Centre in terms of scientific thoroughness, but it's still a sobering video.
And possibly a grown-up version of creating 'crashed' versions of your Corgi models with the artful use of a hammer...