What does car configuration reduction mean?

[OXavier]

Configuration reduction refers to removing some features from the original model configuration, though these reductions won't affect the vehicle's performance. Related introduction of car configurations: 1. Basic trim: Generally means simplified configuration. No leather seats, no power windows/doors, lacking many electronic control functions. 2. Standard trim: Includes normal electric controls like power windows, power steering, air conditioning etc. 3. Mid-level trim: Slightly more advanced than standard trim, containing all standard features plus possibly additional airbags, sunroof, leather seats, power seats, seat heating etc.