In the very last scene, Charlie reveals that he, Naina, and Bilal hid their Mini Coopers (which had the gold) in MC's garage and fled with three new Mini Coopers in order to fool Spider and his gang. However, the plate numbers of the Mini Coopers are the same and Naina's yellow Mini Cooper has a laptop that she used to hack the traffic system which was not supposed to be there as she had switched her Mini Cooper in MC's garage.
When Naina slaps Spider, she says that she slapped him with her left hand, but it's clearly visible that she slapped him with her right.
During the car chase, Charlie is shown wearing khaki trousers when he gets out of the car, but when he was driving he was obviously wearing jeans.
The New Zealand security guards carry handguns, when in fact nobody is allowed to carry handguns in New Zealand, including the police.
In a scene, where Raj drives on a Russian winter road, he's in an old banger Moskvich, but in a take of him behind the wheel, the car is a modern one.
The movie starts in Amsterdam, but the guards at the jewelers' are kitted out in Russian-looking jumpers, not the nationwide-used security 'uniform' with the 'Tick'. They are armed too, which is not allowed for Dutch security guards but could be excused for dramatic purposes. Also, the streets are clearly not in Holland, most clearly to be seen in road signs that are clearly not Dutch.
When the plane lands in Wellington, they cut between shots and half of them show the Sky Tower, which is in Auckland, not Wellington.