买车时，那些高大上的名词到底都是什么意思？（基础篇）

Group 1 - The dimensions of a vehicle, including length, width, and height, are typically measured in millimeters (mm) [3] - The wheelbase is the distance between the center points of the front and rear wheels, also measured in millimeters (mm), and is crucial for determining interior space [4] - Ground clearance refers to the minimum distance between the vehicle's lowest point and the ground, measured in millimeters (mm), affecting the vehicle's off-road capability [5] Group 2 - The approach angle indicates the maximum angle at which a vehicle can approach an obstacle without colliding, measured in degrees [7] - The departure angle measures the maximum angle at which a vehicle can leave an obstacle without colliding, also measured in degrees [7] - The breakover angle is the angle formed by the vehicle's front and rear wheels when crossing an obstacle, indicating the vehicle's ability to navigate uneven terrain [7] Group 3 - Floating calipers have a single-sided piston structure, allowing the caliper body to move during braking, which enhances braking efficiency [10] - Fixed calipers have identical pistons on both sides of the brake disc, providing immediate braking response without lateral movement [12] Group 4 - The wind resistance coefficient describes the aerodynamic drag a vehicle experiences while in motion, with a lower coefficient indicating better aerodynamic efficiency [16] - The turning radius is the radius of the outer wheel's path when the steering wheel is turned to its limit, measured in meters (m), indicating the vehicle's maneuverability [17] Group 5 - Engine displacement refers to the total volume of all cylinders in an engine, typically measured in liters, with larger displacements generally providing better power but higher fuel consumption [19] - Torque is the average rotational force output from the engine, influencing acceleration and towing capacity [25] - The compression ratio indicates the degree to which the air-fuel mixture is compressed in the engine, with higher ratios generally leading to better performance [26]