4. Geography error
Salman drives a London bus in Poland while being chased by cops, and all the cars have UK number plates.
5. When Salman fell in the river with the bus, i wonder how did he survive after that.
6. Factual Mistake
At the end when the bus hits the helicopter, Salman looks to be changing gear to go faster and crash the helicopter with the bus, but London buses are automatic, and the lever shown is actually a bus hand brake.