In the initial pursuit of the stolen Mercedes, the car that is run off the road is at first shown through the windshield of the Mercedes as being too close to avoid a head-on crash due to the speed of both cars. In the following shot, it is much further away and the crash is avoided.
When the car thieves are dropping off the stolen Mercedes, it is steadily raining as shown by the rain in the headlights of the pickup. Yet when the truck pulled up the windshield wipers were not on, the passenger side window was down, and no rain is falling when the passenger gets out seconds later.
When Jon & Ponch are first skydiving, it is clear and the view from the air shows no clouds or fog. A few minutes later as they pursue the stolen Mercedes, it is foggy. It is also foggy later on when they are pursuing the DEA vehicle, revealing both scenes were shot at the same time even though they were supposed to be days apart.
After hearing the alert for the stolen Camaro, Jon & Ponch see it drive by on a dirt road. As it corners, the sound of tires sliding on pavement are heard, which is impossible since the road was dirt.