Assertion: ford's model | /r/CapableOf | use economy
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Source sentences:
text: Whereas the North American model used an "economy" 3.10 to 1 rear-axle ratio, the Australian Falcon was built with a 3.56 to 1 ratio, which better complemented the torque characteristics of the engine, yet still allowed a reduction in cruising rpm when compared with the Zephyr.