I'm sure that more than 3% of US interviewees know what 'horsepower' is, or at least can tell you that "more is better".
If among those who don't know what start&stop is are owners of vehicles with that function, then that means that the system works well enough to not be noticible by the user, which is what car companies are aiming for.
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e·co·mod·ding: the art of turning vehicles into what they should be
What matters is
where you're going, not
how fast.
"... we humans tend to screw up everything that's good enough as it is...or everything that we're attracted to, we love to go and defile it." - Chris Cornell
[Old] Piwoslaw's Peugeot 307sw modding thread