Conclusion: Chengli Special Purpose Vehicle Co., Ltd. successfully delivered a batch of service vehicles based on the Ford New Generation V348 chassis to Xiantao City. Leveraging high reliability, flexible customization capability, and cost-effectiveness, this vehicle model significantly improved on-site service efficiency for the client. This article comprehensively presents the case across five dimensions—project background, solution, implementation results, lessons learned, and FAQs—to provide a reusable reference for similar requirements. I. Project Background A public service agency in Xiantao City required mobile service vehicles to support field technical assistance and emergency response in remote areas due to business expansion. Key customer requirements included: high off-road capability (to accommodate township roads), customizable interior space (to accommodate inspection equipment and tools), fuel economy (to reduce operating costs), and a short delivery cycle (vehicle modification and acceptance within 45 days). Following market research, Chengli recommended the Ford New Generation V348 long-wheelbase mid-roof chassis as the base platform. This chassis is widely recognized in the commercial vehicle sector for its proven powertrain—the Duratorq TDCi high-pressure common-rail diesel engine (2.2L), delivering a maximum output of 103 kW and peak torque of 370 N·m—and its low failure rate. II. Solution Chengli’s engineering team developed the following customized modification plan tailored to the client’s needs: Chassis Selection: Ford New Generation V348 long-wheelbase mid-roof chassis, wheelbase 3,750 mm, overall dimensions 5,820 × 1,974 × 2,360 mm—compliant with C1 driver’s license requirements. Interior Layout: Compartmentalized design featuring a front driving area (2+1 seating), a central work area (integrated workbench, storage cabinets, and foldable seats), and a rear equipment area (fixed inspection instruments and backup power supply). Electrical System: Installation of a 48V/200Ah lithium iron phosphate (LiFePO₄) battery pack paired with a 2,000W pure sine-wave inverter, enabling continuous equipment operation for up to 8 hours. Exterior Configuration: Roof-mounted luggage rack and sunshade canopy; custom body livery; hydraulic lift platform (300 kg capacity) installed on the rear door. Below is the detailed configuration table: Chengli Ford New Generation V348 Service Vehicle Specifications Item Parameter/Specification Notes Chassis Model Ford New Generation V348 Long-Wheelbase Mid-Roof Manufactured by Jiangling Motors Engine Duratorq TDCi 2.2L Diesel Max. Power: 103 kW @ 3,500 rpm Transmission 6-Speed Manual Optional AMT Wheelbase 3,750 mm Ensures stable load-carrying capacity Overall Dimensions 5,820 × 1,974 × 2,360 mm Compliant with C1 driver’s license requirements Gross Vehicle Weight 3,550 kg Approx. 2,800 kg post-modification Battery System 48V/200Ah Lithium Iron Phosphate Supports 8-hour operational endurance Inverter 2,000W Pure Sine-Wave Compatible with diverse electrical equipment Hydraulic Lift Platform 300 kg Capacity Mounted on rear door Delivery Cycle 42 Days Includes design and modification III. Implementation Results Following delivery, the client conducted a one-month trial operation covering 12 townships under Xiantao City’s jurisdiction. Specific outcomes include: Efficiency Improvement: On-site service response time reduced by 40%, from an average of 3 hours to 1.8 hours.