Factual error: When they are only 4 miles from the end, after Frog asks if the Bandit had been expecting all of what was going on, the Bandit picks up the mic, keys up, and calls for the Snowman. The Bandit does not let go of the key, yet you hear Snowman's reply. That is impossible. You need to let go of the key. Bandit then continues to talk on the radio.
Other mistake: Bandit and Snowman are traveling to Texarkana, TX to pick up the beer. Texarkana is in the extreme East border of TX. When you see Sheriff Justice pull up to the guys trying to steal parts off Frog's broken down car, you see "Montague County Sheriff" on his police car door. Montague county is in Northern TX, about four hours away from Texarkana. Bandit and Snowman didn't travel that far into TX to pick up the beer, why would Sheriff Justice be so far away from his jurisdiction?
Factual error: In Texarkana at the distributor, the boxes presented are boxes for bottles (as cans are shipped in "flats"), there are usually approximately 64 cases to a pallet (8 cases to a layer - 8 layers high). 400 cases of bottles would only be 6 full pallets plus a little left over on a 7th. It certainly would not be stacked to the roof of the trailer all the way to the tail.
Factual error: The model of CB radio that Bandit uses is a Pace CB-166. There are three switches to the right of the microphone jack. The third one over is a PA (public address when switch is in the up position, think of a cop coming up behind you in traffic and radioing you to pull over on a loud speaker) and CB (citizens band when switch is in the down position, the setting you would have it set to to talk normally on the CB to others). In the cutaways where it shows Bandit messing with the radio, not only is the radio switched off each time (you can tell because the "TX" lights, meter, and channel selection is not lit, but the radio is switched to the "PA" setting (switch up). Bandit couldn't have used the radio normally when in this position.
Continuity mistake: When Bandit jumps the bridge, the cop car following him goes into the water and appears to be floating before the camera switches to the cop car behind. When that one reaches the bridge, a pile of rubble is in the river from the bridge collapse that was not there in the previous shot.
Continuity mistake: During the final scene as they are heading down that two-lane blacktop to the fairgrounds, Reynolds and Reed have a conversation over the CB radio. In the wide shots, the two lane road curves around tree-covered hills. In the close-ups of Reynolds, you can see the interstate highway through the rear and side windows. No hills, no trees, no winding road.
Continuity mistake: When Buford T Justice is chewing out the trooper on the road at the accident, there is one point when you can see that all the cars have passed. A pickup truck is heading toward them, no other vehicles. Then it cuts to another angle facing Buford, and you see the tail end of a tanker truck that was not in the previous shot.
Factual error: After the Bandit starts negotiating the challenge, he says that hauling beer east of the Texas state line is bootlegging. Actually, Texarkana is a city on the state line border of NE Texas and SW Arkansas. The city is divided in half on the main north/south street called State Line Blvd. The double yellow lines in the center separate Texarkana, Texas on the west side from Texarkana, Arkansas on the east side. Texarkana, Texas is located in Bowie County, Texas which is a dry county (meaning no alcohol sales or consumption except through/inside private membership in organized, officially recognized organizations, i.e. VFW, Rotary, Elks, etc. - transportation, or distribution of alcohol are allowed). Therefore, there would be no Coors distribution center in Texarkana, Texas. With that in mind, hauling beer east of the Texas state line from Texarkana, Texas to Texarkana, Arkansas is not bootlegging. Hauling beer west of the state line of Texarkana, Texas from Texarkana, Arkansas is not considered bootlegging if it is performed by a licensed driver working for a licensed brewery or distributor of a licensed brewery during that person's normal working responsibilities and duties of said employment (federal interstate trade). Other than that, it is bootlegging if a private individual buys alcohol in Texarkana, Arkansas and then transports said alcohol into Texarkana, Texas (which happens 1000's of times a day).
Continuity mistake: After the first major chase of the film, where the police car ends up in the lake backwards, there is a shot of the Trans Am power-sliding around a dirt corner as it gets back on paved roads to continue on. During this shot, it is plain to see that the entire three-piece front spolier (from each front wheel and under the bumper) is completely missing, probably torn off by the uneven ground while shooting this sequence.The immediate next scene shows the entire spoiler back in place as if nothing happened.
Revealing mistake: When Frog says "We're going 110" she's misreading the speedometer. It shows that they're going 110 kilometers/hr, which is 70 miles/hr. Also, the ignition is turned off and the oil pressure and temperature gauges read far lower than they would if the car was actually going 70mph. There's also far too much dust on the dash and gauges for a brand new car that hasn't been on any dirt roads yet. (00:21:00)
Revealing mistake: If you look closely at the pen tip when Snowman is writing the note to Coors to send the bill to Big Enos Burdett, you can see that it is not in the writing position, it is clicked shut. (00:15:57)
Other mistake: When we first see a shot of Bandit's CB radio, you'll notice that it's a Pace Cb-166, and the microphone has a circular Pace logo. Later in the movie when Bandit picks up Frog, and he's holding the mic up as she's rambling to trying to get off her wedding dress, you'll see the mic has a different rectangular logo (still a Pace model mic, but different from the one initially shown. (00:18:06 - 00:25:13)