Most body shops track performance using multiple KPIs.
Hours sold.
Efficiency.
Utilization.
Productivity.
The assumption is simple:
If these numbers improve, performance improves.
But there is a problem.
None of these numbers tell you how the system actually performs.
These metrics measure activity.
They tell you:
– how busy people are
– how many hours are booked
– how much effort is being applied
But they don’t tell you:
👉 if work is actually moving forward
A body shop can be:
– fully booked
– highly productive
– working at 100%
And still be unstable.
In production, there is only one number that really matters:
👉 how much work is completed over time
Not started.
Not scheduled.
Not worked on.
Completed.
