Despite my attack against the guy who wants everybody to call the M113 the Gavin (and believes that it's a light tank), I actually do like the boxy little bastard. For me it's one of the iconic vehicles of the Cold War era just as much as the Chieftain, M60 & T-62 MBTs, the BMP-1 & Marder and the BTR-60 and so on.
I have fond memories of standing in the rear hatch with an SLR in one hand and hanging on for dear life with the other as we ploughed through the scrub at a great rate of knots.
And just for the hell of it, how's this for an interesting M113 variant - be a real bitch to reload the .50 cals under fire!