In the June 2009 issue of GRM, they did a test of some of the hot street touring autocross tires. The test car was a 1989 Honda Civic Si and the test track was Driveway Austin in Austin, TX. A quick recap of the results is listed below. For more info, head over to GRM's website at GrassrootsMotorsports.com.
Bridgestone Potenza RE-11
* Mean Time: 34.266
* Quick Time: 34.238
Bridgestone Potenza RE-01R
* Mean Time: 34.478
* Quick Time: 34.430
Dunlop Direzza Sport Z1 Star Spec
* Mean Time: 35.209
* Quick Time: 35.061
Falken Azenis RT-615
* Mean Time: 35.302
* Quick Time: 35.125
Kumho ECSTA XS
* Mean Time: 34.170
* Quick Time: 34.030
Toyo Proxes R1R
* Mean Time: 34.522
* Quick Time: 34.452
