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Comparison Dimension	Ceramic Brake Pads	Traditional Semi-Metallic Pads	Supplementary Analysis / Data Reference
Purchase Cost	High (potentially 1.5-2.5x that of semi-metallic pads)	Low	Cost variance depends heavily on brand and vehicle model; specific quotes are needed.
Service Life	Over 100,000 km	Typically under 60,000 km	Actual lifespan is highly dependent on road conditions and driving habits. Some public transit case studies show ceramic pads lasting 120,000-150,000 km in urban duty cycles.
Impact on Rotor Wear	Low wear, can extend rotor life by over 20%	Comparatively higher wear	Reduced rotor replacement frequency and cost is a significant economic advantage.
Wheel Hub Cleaning Cost	Minimal dust, non-adhesive, virtually eliminates extra cleaning	Metallic dust is substantial, can corrode hubs, leading to high cleaning/refurbishment costs	This advantage is significant for companies prioritizing vehicle appearance (e.g., tour companies).
Comprehensive Ownership Cost	High upfront investment, but lower long-term maintenance cost	Low upfront cost, but frequent replacement and high hidden costs	A 2-3 year "Total Cost of Ownership" calculation better demonstrates the advantage of ceramic pads.
Recycling & Environmental Value	Added dimension: More environmentally friendly materials; potential future relevance for recycling or eco-credits.	Added dimension: Metal dust disposal may face increasingly stringent environmental regulation costs.	This represents a potential long-term trend cost, not yet widely quantified in the domestic market.