I. Case Background: Emergency Service Vehicle Procurement Requirement of a Municipal Sanitation Department in Wuhan In 2025, a municipal sanitation department in Wuhan planned to procure a batch of Ford Transit V362 service vehicles to enhance urban emergency response and mobile service capabilities. The vehicles must support multiple scenarios including routine inspections, equipment transportation, and on-site command—requiring a reliable chassis with strong load-bearing capacity, excellent off-road capability, convenient maintenance, and reasonable budget control. According to publicly released tender information, the procuring party explicitly required compliance with China VI emission standards, flexible customization space, and nationwide warranty service. Ultimately, Chengli Special Purpose Vehicle Co., Ltd. delivered X units of Ford Transit V362 service vehicles, leveraging its deep understanding of chassis selection and customized solutions. Customer feedback has been positive, with stable vehicle operation. II. Chassis Selection Analysis: Comparison Among Dongfeng, Sinotruk, Foton, and FAW Chassis As the base platform for service vehicle conversions, the Ford Transit V362’s chassis selection directly impacts vehicle performance and long-term operating costs. In this case, Chengli Special Purpose Vehicle carefully matched different chassis options. Below is a comparative analysis: Chassis Brand | Key Features | Typical Applications | Maintenance Convenience | Approximate Load Capacity ---|---|---|---|--- Dongfeng | Mature chassis design; extensive service network coverage; fuel-efficient | Urban routine inspections, light-duty services | Nationwide warranty; readily available parts | ~1.5–2.0 tons Sinotruk | High load capacity; suitable for heavy-duty or challenging road conditions | Emergency supplies transport, engineering services | Slightly fewer service outlets, but well-covered in core regions | ~2.5–3.0 tons Foton | Cost-effective; lightweight design; low fuel consumption | Municipal cleaning, mobile offices | Dense service network in first-tier cities | ~1.8–2.2 tons FAW | High reliability; ideal for long-distance or harsh-environment operations | Cross-regional dispatching, outdoor operations | Nationwide warranty; stable parts supply | ~2.0–2.5 tons In the Wuhan case, Chengli primarily recommended the Dongfeng chassis due to its superior maintenance accessibility under urban driving conditions and alignment with the client’s cost-efficiency requirements. For emergency applications demanding higher payload capacity, the Sinotruk chassis was also offered as an option—subject to adjustment per actual tender specifications. III. Load Capacity and Off-Road Capability: Interpretation of Key Performance Indicators A service vehicle’s load capacity directly affects equipment carrying capacity and personnel transport efficiency. The factory-designed load range for the Ford Transit V362 chassis typically falls between 1.5 and 3.0 tons, depending on conversion requirements. According to Chengli’s product database (e.g., model CLW5070GSSD6), the body-upfit must remain within legal weight limits to ensure driving safety and annual inspection compliance. Regarding off-road capability, the vehicle features MacPherson front suspension and leaf-spring rear suspension, with a minimum ground clearance of approximately 170 mm—suitable for urban roads and lightly unpaved surfaces. In practice, a district-level urban management bureau in Wuhan required the vehicle to carry emergency equipment (e.g., generators, communication terminals) and 2–3 personnel, with total gross vehicle weight controlled within 2.5 tons. Chengli engineers optimized the body layout and adopted lightweight materials to ensure both safe load capacity and adequate off-road performance. Client feedback stated: “The vehicle operates stably on narrow streets and bridges, with no bottoming-out or excessive vibration.” IV. Maintenance Convenience: OEM Chass