Start with what the Plymouth Cricket is: a car with gasoline engine, from Plymouth. What it meant takes a little longer.
The hardware
The engine is gasoline engine. These are manufacturer figures carried by Wikipedia and Wikidata, not road-test measurements.
Family and rivals
Its Plymouth stablemates include the Plymouth XNR and the Plymouth Laser.
The record
The open record for the Plymouth Cricket carries no verified engine, output, weight or price yet. MotorJury does not fill gaps with guesses; this entry gives the model a home in the catalogue and grows as sourced specifications and photographs arrive. Corrections: corrections@motorjury.com.