Used car values held up better than seasonal expectations during July, although the latest figures point to an increasingly split market, 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. “The biggest challenge is still older stock. Solera cap hpi expects the market to follow normal seasonal patterns through August.