Astra is a model name which has been used by Vauxhall

Vauxhall Motors

Vauxhall Motors is a British automotive company owned by General Motors and headquartered in Luton. It was founded in 1857 as a pump and marine engine manufacturer, began manufacturing cars in 1903 and was acquired by GM in 1925. It has been the second-largest selling car brand in the UK for...

, the British

United Kingdom

The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...

 subsidiary of General Motors

General Motors

General Motors Company , commonly known as GM, formerly incorporated as General Motors Corporation, is an American multinational automotive corporation headquartered in Detroit, Michigan and the world's second-largest automaker in 2010...

 (GM), on their small family car ranges since 1979. Astras are technically essentially identical with similar vehicles offered by GM's German

Germany

Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

 subsidiary Opel

Opel

Adam Opel AG, generally shortened to Opel, is a German automobile company founded by Adam Opel in 1862. Opel has been building automobiles since 1899, and became an Aktiengesellschaft in 1929...

 in most other European countries. For the first two generations, the nameplate was applied to UK-spec right-hand drive versions of the Opel Kadett

Opel Kadett

The Opel Kadett is a small family car produced by the German automobile manufacturer Opel between 1937 and 1940, and then again from 1962 until 1991 , when it was replaced by the Opel Astra.-Original model :...

, and since 1991, Opel also uses the Astra nameplate on its B/C-platform, so Vauxhall and Opel Astras are essentially identical vehicles.