Growing sales of diesel SUVs are helping to prevent the European market share of the powertrain from sliding more than it already has in Europe. The continuing increase in popularity of compact SUVs from volume automakers such as the Volkswagen Tiguan and the Peugeot 3008 means that segment is now the largest for diesel sales, with 621,242 sold through 10 months of 2019, according to data from market researcher JATO Dynamics.