Enterprise Rent A Car said it is placing about 100 hybrid vehicles at its Denver International Airport branch, up from about 50 or 60, according to the Denver Business Journal.

Customers will be able to reserve hybrid vehicles such as the Toyota Prius, Toyota Camry and Ford Escape.

Enterprise said local rental rates for the hybrids are expected to start at $59.99 per day, about $10 more than the rate for similar-class vehicles.

The company currently has about 2,000 hybrids in its fleet, and has embarked on a project to increase that number to 7,000.

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