Fire-service dedicated vehicles cannot be driven casually.
Tips
usage
Two flavours: (1) personal - an official's or executive's reserved car (often slightly politically loaded in news, suggesting privilege); (2) functional - a vehicle built or assigned for one mission, e.g. 救护专用车 (ambulance), 邮政专用车 (mail van), 油罐专用车 (tanker truck).
memory
专 (zhuān, exclusive / dedicated) + 用 (yòng, use) + 车 (chē, vehicle), 'exclusive-use vehicle'. Same 专用 shows up in 专用通道 'dedicated lane', 专用号码 'dedicated number'.
