I always liked the idea of a 5 or 6 inch diameter gauge on the rear firewall of a VW Beetle. That would keep the vacuum line short and it would be readable in reverse in the rear view mirror.
The XFi has an Eco-light that comes on to prompt you to short-shift the gears. I don't know the logic of it, it certainly doesn't tell you when to downshift.
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.Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster
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.Because much of what is in the published literature is nonsense,
and much of what isn’t nonsense is not in the scientific literature.
-- Sabine Hossenfelder
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