The people that frequent these boards are realists. They like to see proof of how something was accomplished, and how they could manage the same with their cars. I can empathize with them. But for now, I'll take your word for it.

My SDL runs to 60 mph in less than 9 seconds (on summer fuel). That much I'm CERTAIN. If I can figure out an innovative way of securing the GPS and digicam properly, I can prove it more concisely (tried to even present the road grade visually).

I know for a FACT that the IP rack has been advanced (at full load), indicating a full load stop increase. The idle was retarded along with it. One screw turns the full load out, the other keeps the idle at a reasonable level. Both NEED to be turned at the same time to compensate for each other. I have not touched the internals of the IP (mine) myself, but I have compared one IP to another IP (spare rebuilt from my father). The latter I have heavily tweaked. But I always document my tweaking so that I can revert back to stock settings.

Anyway....Do I believe you, about the 28 mpg? Sure I do...
Do I believe an SD can accelerate to 60 in 9.55 seconds? Of course...
Have you given me reason to doubt? I have seen some E300's that give E320's a run for their money, and some 560SEC's, US Spec, putting out almost 280 crank hp on the dyno. Search the archives over on benzworld, this is the truth.

There are so many variables to the equation, anything can be possible and frequently is.

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1987 300SDL (324000)

1986 Porsche 951 (944 Turbo) (166000)

1978 Porsche 924 (99000)

1996 Nissan Pathfinder R50 (201000)