Complex sentence: Small (only long by wide) and egg-shaped, with bubble-type windows, the entire front end of the car hinged outwards to allow entry; in the event of a crash, the driver and passenger were to exit through the canvas sunroof.
Split into simpler sentences: Small (only long by wide) and egg-shaped, with bubble-type windows, the entire front end of the car hinged outwards to allow entry. In the event of a crash, the driver and passenger were to exit through the canvas sunroof.