Because it's more expensive to replace/repair parts (ie suspension).
Cup is a gp17 because everyone keeps writing them off, no ABS??
Yep, 172 Cup
182 cup
182 no packs
182 with cup packs
182 import
182 Trophy
what group is the 172
Yep, 172 Cup
182 cup
182 no packs
182 with cup packs
182 import
182 Trophy