It turns out that giving buyers too many choices is impractical and costly for carmakers.
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Mr. Marchionne held up hydrogen fuel-cell propulsion as an example of faddish technology that proved impractical.
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Meanwhile, the astronomical price tag of surrogacy in the U.S. made that route impractical.
If revamping the entire tax code is impractical, then lawmakers will tinker around the edges.
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But the U.S. EPA has rejected that idea, calling it impractical and difficult to en-force.
But the U.S. EPA has rejected that idea, calling it impractical and difficult to enforce.
Is the "Earthscraper" a genuinely feasible innovation or a pretty but impractical pipe dream?
In any case, it is impractical for most individual investors to make all these trades.
The problem: It would be impractical to implant several of the devices in a patient.
Some of you will think the rest of Lord Skidelsky's argument is equally impractical, or naive.
Economists, even very prominent ones, enjoy spinning schemes that have theoretical appeal, no matter how impractical.
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They are cumbersome and the logistics of supplying chemicals and disposing of waste makes them impractical.
Mr Lochhead has warned that is "unjust and unfair" and also "impractical and unworkable".
More important is that while solar electricity offers huge growth potential, it is still broadly impractical.
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Finally, the different physical size of VHS and Beta tapes made building dual-format decks impractical.
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They are designed to offer Wal-Mart priced deals to consumers in geographical locations where Supercenters are impractical.
There are many ways to use video, and trying several at once can be overwhelming and impractical.
While Schmidt seemed serious with his proposal of name-changing, such lengths are not only impractical but impossible.
But video is impractical in continuous-action sports like football, where officials must stop play to use it.
The agency quickly backed away from the concept this spring, however, and now considers the doors impractical.
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But even within the Tory party this proposal was widely regarded as impractical and out of touch.
The secondary headteachers union suggests the curriculum is in theory a good idea but in many ways impractical.
It is impractical to sue a million teenagers one at a time, each nameless and hard to trace.
As far as getting international players to play a fair game with us is impractical at best now.
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Many Colombians accept that while the conflict continues, a truth commission is impractical and that compromises were necessary.
The pessimists said it was simply impractical to bring complicated drug regimens into poor regions with little infrastructure.
But GLP-1 turned out to be an impractical medicine, as it degrades quickly once injected into the body.
The concept of an American Pope is often dismissed as impractical and undesirable for a whole host of reasons.
That's impractical for a niche car that will sell only about 18, 000 copies.
Critics like Anthony DeArdo , a materials science professor at the University of Pittsburgh, dismiss superhard steel as impractical.
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