File:Opel Astra 1.6 CDTI ecoFLEX Edition (K) – Frontansicht, 13. Oktober 2015, Düsseldorf.jpg - Wikipedia
File:Opel Astra 1.7 CDTI White Edition (J) – Heckansicht, 23. Mai 2013, Heiligenhaus.jpg - Wikimedia Commons
New Opel 88 g/km CO2 (71 mpg US) diesel Corsa ecoFLEX model; 26% reduction in fuel consumption and CO2, 26% boost in performance over 5 years - Green Car Congress
Opel Announces Less Powerful Astra 1.6 CDTI Diesel Engine with 110 HP - autoevolution
Opel ASTRA H 1.7CDTI COSMO 210,596 km 4.539,<sup class="currency-decimal">69</sup> € | NEOSTAR
Opel Astra with 1.6 CDTI diesel drops fuel consumption as low as 64 mpg US - Green Car Congress
Opel Astra III H 1.7 CDTI 100KM Estate - Premium Cars