While you guys are covering the bellwethers (esp. HEMI). I think the 727 and it's variants are up there, of course the XJ Cherokee and Minivans, for naught the co would be dead. I think very up there is the mating of the Cummins to Dodge was brilliant.
The only thing I've felt cheesy, yet understand on the design level was the unibody/torsion bar concept. Primer dips should have included the entire body to the top of roof.
The wrongest was the omni or tc, I'm not fond of either.