im guessing that the s5 tops will still work for a s5

 

doh i mean s5 top on s4

 

I've asked about this and have been told only difference is the built in rain gutters, have not tried thought

 

arnt the rain gutters in the door though?

 

The S5 rear section has better drains at the doors, and is the factory upgraded part for S4 models

The S5 Top/targa section has rain gutters, not found on the S4 models, but I am not sure if the actual fiberglass Targa section or the targa section cover has the added on rain gutters.