Opel GT - Wikipedia
Opel Astra Spotted Testing On American Roads | Carscoops
Could Opel Be Returning to the U.S. Automotive Market Soon? - The News Wheel
Holden und Buick: Opel-Modelle in Amerika und Australien
Opel Insignia - Wikipedia
Opel Cascada - Wikipedia
All OPEL Insignia Models by Year (2008-Present) - Specs, Pictures & History - autoevolution
Magna Says GM Agreement Forbids Sale of Opel Cars in the U.S. and China | Carscoops
Here Are All the Opel Models That Have Recently Been Rebadged for the U.S. - Autotrader
Official: Opel Insignia Heading to the USA as the Buick Regal | Carscoops
Opel: They were in the U.S. a long time, and you may not have known it
Opel Insignia
Here Are All the Opel Models That Have Recently Been Rebadged for the U.S. - Autotrader
Cute and tough, the Buick-Opels were often driven into the ground | Hemmings
Why doesn't Opel sell cars in U.S? - Quora
Full List of Car Brands with “O”. AUTOMOTIVE 2 days ago 19 0 | by Albert spencer | Medium
Why don't they change Vauxhall to Opel as it would be cheaper to manufacture, advertise etc? - Quora
1970–1975 Buick Opel Manta: Germany to the Rescue! | Autopolis
Here Are All the Opel Models That Have Recently Been Rebadged for the U.S. - Autotrader
All Opel Models: List of Opel Cars & Vehicles
1969-73 Opel GT: GM's International Sports Car - Old Motors
Looking back at sixty years of Opels that can't be kept from American shores | Hemmings
Small Saturn: Next Opel Corsa to be sold in U.S.
Holden und Buick: Opel-Modelle in Amerika und Australien
