Haha... the striker, about the same weight as the average ocean liner, but with worse handling.
BX-wise, they were good, apart from the 1.9RD deciding to spill it's LHM (hydraulic fluid) on the road one day. Since it was a mile to work, I kept going. Usually I'd hurl the thing into the nearest driveway/lawn before the brakes gave up as the fluid vanished.
It certainly helped to have a brother in law who's a Citroen mechanic though. /ubbthreads/images/graemlins/smile.gif
I had friends who let their gas spheres go bad, which either results in low-riding gutter-cleaners that have the all the luxury suspension of a park bench, or they go the other extreme and go super-high and bounce forever, with no apparent damping!
The one great adventure I had in a BX (the 1.9RD again) was that when starting, it would lose all power while trying to start, and go completely dead, not even the hint of a spark. It did this once and I got someone to jump start me, then went for a drive through the country to see if it helped charge things back up.
I was sailing along a country lane at 80 and trying windows, etc (yes, electric, in a B-reg BX!) and then I tried the lights. This was what we call a "mistake".
Complete power loss. I was now coasting at 80, and since the engine powers the pumps that manage the suspension and brakes, I decided to pull over sharpish. (See above comment about "lawns"). Having ploughed 4 shapely furrows in some poor sod's front garden, I used his phone (mobiles were still working their way into common use at this time) to call National Breakdown (I was SO much happier to hear their hold song "Rescue me"). Turned out to be a loose connection on the battery, which we spotted purely by seeing a spark.
Still a comfy car though. Never tried driving it on 3 wheels (as it's rumoured to be possible), but this may well have happened automatically if I'd owned it for longer...
Cheers,
B