When Martin is returning fire, outside of the truck, the slide locks back on his pistol, meaning it's empty, yet he immediately fires another shot without reloading.
Miguel hot-wired the truck to start the engine using two hands. Then after checking on Montesinos' crash on the side road, he started the truck's engine appearing to be using a key as he used one hand for it.
When the cop looks at the spike in the front tire it has obviously not been driven at all with the spikes impaled on it.
When the police officer crashed into the tree, the SUV clearly shows no airbag deployment.
Despite the movie is set to be 'below zero' and a lot of scenes are shot in apparantly freezing coldness, in none of the scenes the exhauling breath of all persons show small misty clouds.