---

Total Number Of Vehicles Measured = 330,785

 

	Valid Readings*	Invalid Readings**
Number of Vehicles	323,063	7,722
Percentage of Vehicles	98%	2%

*Denotes vehicles with measurable exhaust plumes where the machine saw exhaust when triggered

**Denotes vehicles where their exhaust cannot be measured, vehicles with exhaust stacks on top instead of at the lower rear, OR vehicles where the machine saw no exhaust when triggered.

---

 

	Good	Fair	Poor
Number of Vehicles	309,895	10,267	2,901
Percentage of Vehicles	96%	3%	1%

---

How It Works Rate My Car FAQ Technical Information

Statistics Sponsors Contact Info Research Home

Comments or questions? Email the webmaster

This site was last updated March 18, 2005

 

March 2004 Statistics