This is the third and final report in our annual review of vertical marketplaces (classifieds), focused on used cars, and follows Vertical marketplaces overview and recruitment outlook [2015-115] and Property marketing outlook [2015-116]. Auto Trader has long been the leading platform in cars – this was true in print, and the business is the greatest example of digital transition from print to digital we have seen anywhere in the world. Auto Trader was successfully IPO’d in 2015. The timing was good as the used car market is buoyant with many young cars coming to market following a period of intense new car purchasing, which was fuelled by attractive financing. Could Auto Trader be squeezed by the combination of specialist services Pistonheads and What Car? (Haymarket) at the top of the market, and Gumtree at the bottom? There is limited evidence of this to date, and AutoTrader is moving up the value chain, albeit without fundamentally diversifying its revenue model. The opportunities for growth from declining print revenue will shrink, however, and there is some downside risk for the market as a whole if car oversupply, driven by a decline in the number of used car buyers, become more accentuated.