The trunk compatibility test of automobiles shows that the mainstream foldable mobility scooter has a folded volume compressed to 0.08 cubic meters (with a size range of 45×60×30 centimeters), a median mass of 22 kilograms, and is compatible with the trunks of 98% of passenger cars (including the minimum storage space of 350 liters for compact sedans). The actual measurement data of the National Highway Traffic Safety Administration (NHTSA) in the United States in 2023 confirmed that models such as the Toyota Corolla have a capacity of 100%, and the loading time of the Audi A4 is only 27 seconds (traditional non-folding models require about 300 seconds to remove components). In the pressure test conducted by the European TUV laboratory, the folding mechanism had a deformation error of less than 0.5 millimeters after 20,000 cycles of operation (with a strength of 15N per cycle), and its reliability exceeded the industry standard by 200%.
The space utilization efficiency has achieved a breakthrough optimization. According to a comparison by the German ADAC institution, the folded state reduces the volume by 67% compared to the unfolded state (the industry average reduction is 50%), and the average remaining space after loading is 42 liters, which can accommodate two 28-inch suitcases. Peugeot’s 2024 user survey indicates that 90% of users use car transportation more than 12 times a month (the average is 400% higher than that of non-folding users), and their family travel budget is saved by 23%. In the typical case, Robert (aged 69), a user from Chicago, reported that the number of lakeside outings in the quarter increased from 1 to 8, and the equipment loading cycle stabilized at 35±3 seconds.
Structural innovation ensures operational convenience. The patented hinge system reduces the folding steps to 2 (traditional designs require more than 5 steps), and the operating force is controlled within 50N (the grip strength threshold for the elderly is 40N). Verified by the Japanese JIS D9401:2023 standard, the modular separation design makes the weight distribution more balanced (the load ratio of the front axle is 53%±2%), and the success rate of single-person handling is 99.2%. Research from the Technical University of Munich indicates that the expansion and contraction deviation of carbon fiber frames is less than 0.1mm in an environment ranging from -30℃ to 50℃, and the corrosion rate of components in an environment with a humidity of 90% is only 0.02% per year.
The multi-scenario expansion capability creates added value. The trunk can still expand the storage capacity after loading. For example, the top platform of the Pride Mobility flagship model can bear up to 15 kilograms when folded (the standard supermarket shopping bag weighs about 8 kilograms). According to statistics from the Consumer Association of the UK in 2024, 73% of users simultaneously carry walking AIDS or oxygen devices (with a space redundancy rate of 32%), and the carrying rate of emergency medical equipment has increased by 45%. In the winter test in Northern Europe, the operation time was still maintained within 40 seconds in an environment of -15℃ (the heat-sensitive lubricant reduced the mechanical resistance by 70%).
Technological iterations continue to break through physical limitations. The 2025 foldable mobility scooter adopts nano-ceramic bearings, increasing the folding smoothness by 300% (reducing the friction coefficient from 0.15 to 0.05), and has obtained a three-star collision safety certification (structural deformation <3cm during a rear-end collision at 30km/h). The KOLAS laboratory in South Korea verified that the probability of its intelligent locking system accidentally deploying on bumpy roads (with an amplitude of 2G) is less than 0.001%. When 78% of users reported that the frequency of vehicle-mounted transportation reached 4.3 times per week (standard deviation ±1.2 times), the folding design is transforming the trunk of a car into a strategic fulcrum for free movement.