A new study ranked Dunkin' Donuts as the fastest drive-thru of national restaurant chains.
QSR Magazine reports that customers wait an average of less than four minutes at Dunkins. That's well ahead of Chick-fil-A's last place finish with an average wait time of almost five and a half minutes.
McDonald's, Hardee's, and Arby's were among the other slowest.
Cox Media Group
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