Today I was underneath an Opel Omega(Cadillac Catera here in the US) and i noticed that the rear cradel/subframe, differential, suspension etc.. looks just like a Cav 4x4 rear section. Does anyone know if this is the case. Because if so it would make it a lot cheaper to convert an Astra MK2(Pontiac LeMans in US) over to all wheel drive, by cutting down on import costs. Just getting everything to fit would be the hard part. Thanks for any info.