What does the 'base model' of a car mean?

[Claire]

Car 'base model' refers to the low-configuration version of a vehicle. Cars typically come in standard, low, mid, and high configurations, which include: 1. Low configuration: Generally means simplified features, lacking leather seats, power windows, and many electronic control functions; 2. Standard configuration: Includes basic electric controls such as power windows, power steering, and air conditioning; 3. Mid configuration: Slightly more advanced than the standard, including all standard features plus additional elements like airbags, sunroof, leather seats, power seats, and seat heating; 4. High configuration: The highest among these, often considered the flagship version of the model.