When evaluating car elevators, the most critical technical factor is the Rated Load Capacity, which typically ranges from 3,000kg to 5,000kg for standard vehicles. You must also verify the Platform Dimensions (standard is often 2500mm x 5500mm) to ensure compatibility with SUVs and long-wheelbase luxury cars. Additionally, prioritize systems with Variable Voltage Variable Frequency (VVVF) drive technology for smooth leveling and energy efficiency, and ensure the Leveling Accuracy is within ±5mm to prevent tire damage during entry and exit.