This is kind a spin off of Larry's post, but what gas engine for the S-Class has the best overall reputation? The 4.2 L seems to be well balanced, but not sure what others think. The 3.0 L is good, but they discontinued that. Why? Did if bode better for the E- class? The 5.6 L seems to be for speed only?

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'89 420 SEL
'90 300 SEL
'68 Olds 88 Convertible
'84 300 SD (sold it)