Additions:

• Occasionally the 'get in driver action' for the ADA won't be displayed for longer periods of time, thus rendering it more or less unusable (all other actions and options remain as usual, though). The action apparently returns after prolonged periods of time (maybe after server restart, but this is currently just a guess).
• Using motor oil on the ADA is flawed a little bit: first, finding the position to fill in the oil is tricky (and the actual position - next to the co-driver's door, looking through the windshield - is rather strange); second, the yellow engine status symbol will only disappear when reentering the server after filling in the oil (thus making it uncertain, whether the motor oil actually achieved the desired effect).

Some more:

• if passengers have glow lights active inside the ADA at night, this will produce some strange light effects outside the ADA...