I have a silly little idea for a car involving moving the engine to the back (FF or FR, into a RR). I know it sounds silly, but silly ideas are just how I seem to run. I simply don't see the fun in placing a v8 in something or chasing milliseconds of time like my dad.
However, my main concern is affecting the crumple zones of the car (in placing the engine in the rear, low down for centre-of-gravity as well as a few other reasons, the spare tyre/fuel tank area will be partially cut out. I am also concerned that some cars may design the crumple zone with the intention of there being a solid engine, and thus maybe crumpling TOO much when it's removed?)
So, how do you know what's the strong zone and what's the crumple zone? Especially given that every model of car will be different... I know parts that are meant to be strong can be reinforced to compensate (especially given it'll be a small engine and I'll likely only be removing the spare tyre hole?) but anything that is specifically designed to be a precise weakness is something I don't wanna touch with a 10 metre pole!
Engine removed from front of car
Spare tyre well cut out, and maybe some cutting where the fuel tank was for the differential?
I wish to retain factory-like safety. Exact car unknown as of yet but will be late 90s-early 00s