To determine whether a car has rear-wheel drive (RWD), comprehensive observations can be made from multiple perspectives. First, the distance between the front wheels and the doors (L113) in RWD vehicles is typically longer than in front-wheel drive (FWD) vehicles. This is due to the longitudinal engine layout requiring more lengthwise space, coupled with RWD cars generally having shorter front overhangs that position the front wheels closer to the vehicle's nose. Second, examining the front brake caliper placement reveals that RWD vehicles usually position them behind the brake discs, whereas FWD vehicles - constrained by transverse engine layouts - typically mount them in front. Additionally, the rear axle of RWD cars normally exhibits visible differential and half-shaft assemblies, features absent in FWD vehicles' rear axles. For market positioning, rear-drive architecture predominantly appears in handling-oriented premium models or performance cars, carrying higher production costs but delivering superior weight distribution and driving engagement. Employing these methods collectively significantly enhances identification accuracy.