When sourcing car tyres, buyers must prioritize safety ratings and material composition. Key technical indicators include the Treadwear Rating (higher numbers indicate longer life), Traction Grade (AA, A, B, or C), and Temperature Resistance. Ensure the tyres use a high-percentage natural rubber compound mixed with silica for optimal wet-grip performance. For B2B buyers, it is essential to verify the Load Index and Speed Symbol to ensure they match the target vehicle segments in your local market.