Used car values outperformed seasonal expectations during July, according to Solera cap hpi. The decline was better than the long-term August average of 1.0%, making it the fourth consecutive month in which values have beaten seasonal norms. Chris Plumb, head of current car valuations at Solera cap hpi, said: “The headline movement only tells part of the story. Solera cap hpi attributed this to rising wholesale supply, particularly from part-exchange vehicles, higher preparation costs and weaker demand for vehicles needing refurbishment. Solera cap hpi expects the market to follow normal seasonal patterns through August.