Competitive pricing led to commercial success, and Kadetts continued to be produced during the early months of the war: by the time production ended in May 1940, following intensification of World War II, 106,608 of these Opel Kadetts had come off the assembly line at Opel's Rüsselsheim plant, which had been the first major car plant in Germany to apply the assembly-line production techniques pioneered by Henry Ford.
The Calibra came with 2.0-litre 16-valve four-cylinder engine from the Family II range with a Cosworth-designed cylinder head that put out a healthy 150bhp, which when combined with the sleek shape gave the Opel a healthy turn of speed. These early cars, which were built until 1993, are becoming desirable as the C20XE engine produced more power than the cleaner X20XEV engines of later cars, which only put out a still credible 136bhp. Other markets got an eight-valve version of the Calibra producing 115bhp. This car was never sold here in Ireland, but it did have the distinction of being the most aerodynamic production car in the world at that time.
It had some crazy mechanical issues. At one point it stumbled and stalled because the carburetor had come loose from the intake manifold and I had to tighten it back down! Another time, my brother was driving it and the brakes failed. Somehow the end of the brake shoe that meets the brake cylinder piston had become worn on one side, causing the piston to slip off the end of the shoe when the brakes were applied, losing braking and squirting fluid all over.