On entry to the garage, there is an advert for "Tire Market". In Britain the spelling is always "tyre", not "tire".
Some of the "British" number plates on vehicles make no sense. For example, "HSXA 82KS" on a police vehicle is of a format and configuration never used in Britain, and "PR45 HYT" on Emma's car is a number that would be issued between March and September 2045, clearly far into the future (as an aside a 95 plate would indicate September 2045 - March 2046). "AC32 TRG" on another police vehicle is a number which would be issued between March and September 2032, also more than a decade in the future.
Colin McSorley's criminal record is supposed to be in Portuguese, but when it comes onto the screen it is in English.
When they speak to the garage owner you can see an advert for "mufflers" in the background. Mufflers are referred to as silencers in the UK.
The taxi they steal is a pretty new model, yet it has a registration plate starting with a year model Y, which is 2001. The taxi is not 20 years old.
In the safe cracking scene, Will says the line "She's the best there is" in an American accent when he's supposed to be masquerading as British.