Final answer:
The area surrounding a car that can't be seen from the driver's seat is known as a 'blind spot,' which is a safety concern in driving.
Step-by-step explanation:
The area surrounding your car that can't be seen from the driver's seat is commonly referred to as a blind spot. This is the space where your car's mirrors and direct line of sight cannot provide information on what is alongside or just behind the vehicle. Blind spots can become a significant safety concern, particularly when changing lanes or reversing, as other vehicles, cyclists, or pedestrians might be present in these spaces without the driver being aware. Although it isn't one of the provided options, the term 'blind spot' is the most accurate and commonly used.