The Black Book editors and survey personnel have identified select trends the week of June 23, which show where dealers and remarketers need to pay close attention to inventory management strategies.

Volume-heavy segments, summer-favorite models, and late-model units from off-rental are all having an impact on supply currently.

“Mainstream car values declined sharply with the arrival of summer while most truck segments continue to show steady depreciation trends,” said Anil Goyal, Vice President of Automotive Valuation and Analytics.

Overall, the volume-weighted car values decreased by 0.76 percent, last week, the most in last 52 weeks. Popular segments, including Compact Car, Entry Level Car, Entry Mid-Size Car, Full-Size Car, and Upper Mid-Size Car, declined by about 1 percent last week. It was no surprise that sporty cars were in demand as the summer months approached, according to Black Book.

Overall, the volume-weighted truck values decreased by 0.25 percent last week as Pickups and SUVs continue to perform better than cars.

Buyers are being very selective on 2014 and 2015 models and many have been chalked up as “no-sales” this past week.