It will be powered by the latest-generation one-litre, three-cylinder petrol engine developed especially for the KARL.
"Short, crisp and full of character - the name KARL reflects its strengths. Opel's new entry-level model is a grown-up car and will appeal to heart and intellect," explained Opel Group CEO Dr Karl-Thomas Neumann.
"KARL offers typical Opel virtues, starting with the hi-tech, quiet one-litre, three-cylinder engine and by no means ending with our award-winning 'IntelliLink' infotainment system.
"The Opel KARL is the ideal car for price-conscious customers looking to combine everyday suitability with comfort and modern technologies."