OPEL ASTRA F Estate (T92) 1.4 (F35, M35) Estate Petrol 09/1992 01/1998 FWD 8 82 60. OPEL ASTRA F Estate (T92) 1.4 i 16V (F35, M35) Estate Petrol 02/1996 01/1998 FWD 16 90 66. OPEL ASTRA G Estate (T98) 1.6 CNG (F35) Estate Petrol/Compressed Natural Gas (CNG) 03/2003 06/2004 FWD 16 97 71.