Which vehicles can an A1 driver's license drive?

[Mandy]

A1 driver's license is authorized to drive large passenger vehicles (passenger vehicles with a length greater than 6 meters or with a rated passenger capacity exceeding 19 people). Other authorized vehicle types include A3 (city buses), B1 (medium-sized passenger vehicles), B2 (large trucks), C1 (small cars), C2 (small automatic transmission cars), C3 (low-speed cargo vehicles), C4 (three-wheeled vehicles), and M (wheeled self-propelled machinery). Additional information: 1. A driver's license is a certificate required by law for motor vehicle drivers, officially known as a motor vehicle driver's license, also referred to as a driving license. A1 is one of the driver's license codes, authorizing the holder to drive large passenger vehicles (passenger vehicles with a length greater than 6 meters or with a rated passenger capacity exceeding 19 people). 2. An A1 driver's license cannot be obtained initially; it can only be acquired through license upgrading. Currently, there are only two ways to obtain an A1 driver's license.