Technically wise, The engine is the Rootes 1.6 Hillman Avenger (which were used on Paykans since late 70s) and was mated to the Hunter drivetrain and suspension.
A revised model released in 2010 known as Peugeot ROA uses 1,700 cc CNG engine. In older models, Iran Khodro used a modified version of the Paykan's 1.6-litre engine.
The engine specifications are as follows:
[REDACTED] Media related to Peugeot ROA at Wikimedia Commons