Resale values in the passenger-car category remained strong during the past three months, Black Book recently announced.

According to Black Book, 79 percent of 2005 model-year passenger cars either increased in value or depreciated less than $300 from May 1 to July 31, whereas 32 percent of trucks and SUVs gained in value or declined less than $300 during the same time frame.

During the previous quarter from April 1 to June 30, Black Book data showed that 59 percent of passenger cars either climbed in value or depreciated by less than $300. This compares to 39 percent of trucks and SUVs during the identical period.

Black Book officials say that the pickup truck and compact SUV segments "took the hardest hit" to their values in the past three months, with pickups depreciating by 7 percent and compact SUVs depreciating by 6.1 percent. Meanwhile, luxury and small-car segments depreciated by 2 percent, 1.3 percent and 1.4 percent respectively, Black Book added.