[raldi]

Whereas quite often you'll need to know how long it’s going to take to drive to a city 90 miles away, and it's quite convenient to use the "1 mile ~= 1 minute" approximation to estimate that it'll take 90 minutes.

[phlo]

And this is where metric really shines: at Autobahn speed (130 kph), 90 miles is only some 66 minutes -- 24 minutes saved over imperial. :)

[jordan0day]

Finally, a convincing argument for the metric system! It will shorten our commutes!