For the curious, I'm using four day turns as it works well on my map scale for movement (And also British supply ran out in four days.). For example, in four days the Brescia division could move 180 miles if four days or 45 miles a day on a paved road. That's slightly less than than one half the distance of Trento Division could make before it lost its trucks. Since Brescia could only had enough trucks to relay two of their four battalions at a time, that sounds about right. More game info upon request.
David is also correct about trails appearing on maps that aren't actually useable as dirt roads but only useful for navigation. Half of all map trails are useless as roads. I suspect the trails down from Sofafi and Rabia guarded by the 63rd Cirene were not vehicle useable in 1940 and Cirene mistakenly stopped here, thinking it was Bir Enba. Had Cirene moved up to Bir Enba, the 19 mile gap in the line between it an the Maletti Group disappears. At the same time, Cirene would be blocking the road to Sofafi and Rabia. All routes are now covered and a major blunder averted. Has anyone else considered the Sofafi and Rabia trails to be impassable? I know the original Italian invasion plan for September 13 makes no mention of using it but does of Bir Enba.