REVIEWS Diesel Citroen DS4 e-HDi crossover is frugal and stylish REVIEWS Citroen DS4 Crossback review REVIEWS Group Test: Citroen DS4 vs Volvo V40 Cross Country vs MINI Cooper S Countryman REVIEWS Group Test: Peugeot 308 Turbo vs Opel Astra Turbo vs Citroen DS4 REVIEWS 2012 Citroen DS4 crossover is not just a pretty face