After Jim drives up the car hauler his pursuers drive right by & turn left but, when Jim drives off the car carrier to awaiting police. The bad guys he just eluded have their 1967 Chrysler parked right behind the same trailer just past the driveway.
When Jim drives past the car hauler pursued by the bad guys in the Chrysler, the way is blocked by a car being unloaded, a Cadillac. When the bad guys pass the hauler immediately after, the car in the street is a Chevy Vega.
Rockford passes a truck to lose a tail, and the yellow lane markings are solid, which is a no-passing zone, but when the car following him is shown, the line is broken, which is a passing zone.