In 1924, the Rüsselsheim-based company went even further to cater to the “average consumer” – also thanks to an automotive innovation. After all, from the very first minute Opel was committed to producing cars as efficiently as possible and thus making them affordable for a broad customer base. Consequently, the 4/12 hp heralded the start of assembly line production in Germany. And because the 60 km/h fast car was only available “in a quiet green that pleases the eye” to keep the time and effort required for production at a minimum, everyone called it the “Tree Frog”. Soon, 25 two-seater “cars for everyone” left the assembly line every day. In the following years an entire vehicle family was built on the Tree Frog technology. The smoother production ran, the greater the cost advantage that Opel passed on to its customers. Unbelievable but true: the purchase price of the 4 hp model series, of which 119,484 units were produced, was almost 40 per cent lower in 1931 than at the launch of the Tree Frog model.
Last week when I was looking at 90s coupes, I came across one that Americans never had the chance to get – the Opel Calibra. A successor to the Opel Manta that Americans once got through Buick dealerships, I began to realize it was a shame we never got to have this. Weirder, considering it shares a lot of underneath pieces with the second-generation Saab 900.
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.