In the 1960s and 1970s, there was a revolutionary internal combustion engine design, the Wankel rotary engine, which also had a similar problem, needing to be "warmed up" before being put under load. At the time, I had an outboard motor, built on the Wankel principle. It was somewhat unnerving to drift about at the mercy of the elements while waiting for the motor to warm up!
The Wankel rotary engine was used in some sporty Mazda cars.
See here:
Innovative and compact, the rotary engine was once celebrated as a promising breakthrough in automotive technology.
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