Dollar Thrifty Automotive Group reported first-quarter net income of $16.5 million

, down from $27.3 million for the same quarter in 2010. Vehicle rental revenue stayed flat year over year at $332 million. Rental days increased by 3 percent year over year, but average revenue per day fell by 3 percent due to softer pricing. CEO Scott Thompson said the revenue environment for the upcoming summer season would be stronger.