My preference is with the inline-6 over the V6, but that's just me.

One thing to consider with the inline-6 is that early M104 engines had problems with oil leaks at the head gasket.

The head gaskets were updated several times, but I don't know when the last update hit.

'96-'97 E320's may never need a head gasket.

I don't think the V6's ever had head gasket problems.

Another consideration is that the '96 had the 4 speed transmission, which proved to be quite durable and is cheap to rebuild.

'97 was the first year of the 722.6 5 speed auto, but it required a lot of updates. 2000 models have all the updates needed.

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Paul S.

2001 E430, Bourdeaux Red, Oyster interior.
79,200 miles.

1973 280SE 4.5, 170,000 miles. 568 Signal Red, Black MB Tex. "The Red Baron".