In my household (other cars ain't mine):
'99 Crown Vic, 4.6L V8, 108,000 (mine

!) - been awesome so far!
'00 Dodge Caravan, 3.0L V6 (Mitsu 6g72; I like Mitsubishi engines), 85,000 - been good, needed a new speed sensor in the tranny a while ago
'92 Grand Marquis, 4.6L V8, 181,000 - superb car, my dad doesn't baby it either... Original engine and transmission, Ford mechanic said to manually shift into overdrive to help save the torque converter. My dad's Chevy friends love to bash Ford tranny's, but his car shuts them up.
'84 Ford F-150, 5.8L (351 Windsor) 4BL H.O., C6 trans, 9" rear end, 4.10's, 238,000 - Engine was rebuilt ~200,000 - transmission is original. I love this truck, the C6 tranny is truely legendary and it still shifts very firmly.
'06 Harley Davidson FXDBI Street Bob, Twin Cam 88 - cool bike!
'94 Bayliner 17', 120hp Mercury Marine
My fav engine is the 4.6L
Perhaps too much information, but oh well... My two past cars:
'94 Mazda Protege LX, 1.8L BPD - Great engine, 7,000rpm redline, never burned any oil via 5,000 mile oci's.
'94 Mitsubishi Eclipse base, 1.8L 4g37 - very tough and reliable engine