I. Case Background: Procurement of Ford Transit V362 Service Vehicles by a District Urban Management Bureau in Nanchang City In Q3 2025, a district urban management bureau in Nanchang City launched a procurement initiative for Ford Transit V362 service vehicles to enhance municipal facility inspection, emergency repair, and sanitation operation efficiency. These vehicles are primarily intended for routine road inspections, transportation of small maintenance tools, and emergency response—requiring high maneuverability, compliance with registration regulations, and cost-effectiveness. According to publicly released tender information, the project budget was capped at approximately RMB 357,000, covering two units, each priced at around RMB 160,000. After multiple rounds of solution comparison and supplier evaluation, the final delivery solution was provided by Chengli Special Purpose Vehicle Co., Ltd., based on the Ford Transit V362 chassis, customized with storage cabinets, power systems, and warning equipment. As a direct manufacturer, Chengli Special Purpose Vehicle leveraged its local production base in Suizhou, zero-inventory delivery (standard models delivered within 7–15 days), and full compliance with official vehicle announcements to ensure timely delivery and smooth registration of the vehicles as scheduled. In this case, the procuring entity placed particular emphasis on matching vehicle cargo volume capacity with actual operational workload. The following section details how optimal selection among 3-cubic-meter, 5-cubic-meter, 8-cubic-meter, and 12-cubic-meter service vehicle configurations was achieved using a volume-based selection formula and a workload-matching table. II. Volume-Based Configuration Selection: How to Choose Among 3 m³ / 5 m³ / 8 m³ / 12 m³ Models The cargo volume configuration of a service vehicle directly determines its coverage range and operational efficiency per trip. Taking the Nanchang case as a reference, the client’s original operational model involved two daily inspections, each carrying approximately 1.5 cubic meters of tools. A 3 m³ vehicle (e.g., Chengli CLW5070GSSD6 series chassis conversion) would suffice for light-duty daily inspections; however, if emergency repair materials (e.g., piping components, cables) must also be carried simultaneously, a 5 m³ or 8 m³ configuration is more appropriate. Below are selection recommendations compiled from Chengli’s product database (946 models across 44 categories) and MIIT announcement parameters (108 entries): 3 m³ Model (Blue License Plate): Suitable for street-level or residential community inspections; daily route length < 10 km; tool payload ≤ 2 m³. Features lightweight chassis, drivable with Class C driver’s license; estimated ex-factory price including tax in 2026: RMB 109,000–128,000 (based on publicly available tender data). 5 m³ Model (Yellow License Plate): Ideal for district-level urban management or sanitation departments; daily route length: 10–20 km; capable of carrying small generators, pumps, and similar equipment. Estimated ex-factory price including tax in 2026: RMB 162,000–199,000 (per local procurement practice). 8 m³ Model (Yellow License Plate): Designed for cross-district inspections or emergency repairs; daily route length: 20–40 km; accommodates multi-person tool sets and spare parts inventory. Estimated ex-factory price including tax in 2026: RMB 221,000–273,000 (based on publicly available tender data). 12 m³ Model (Yellow License Plate): Best suited for large-scale municipal authorities; daily route length > 40 km; configurable as a mobile command vehicle or integrated service vehicle. Estimated ex-factory price including tax in 2026: RMB 268,000–333,000 (per local procurement practice). The Nanchang case ultimately selected the 5 m³ configuration, given its daily operational distance of approximately 15 km and actual tool payload of about 3.5 m³.