Complex sentence: Separate control of ventilation direction was provided for both driver and front seat passenger and warm air could be directed to the rear passengers through an outlet situated on the propellor shaft tunnel cover between the two front seats.
Split into simpler sentences: Separate control of ventilation direction was provided for both driver and front seat passenger. Warm air could also be directed to the rear passengers through an outlet situated on the propellor shaft tunnel cover between the two front seats.