Wrap changing size of sketch

So I am working on designing a car to test air resistance for a school project, but I ran into a problem. I am putting the headlights on a curved surface, and using Wrap, and it resizes the sketch. Is there a way to lock the sketch so it will not get smaller around a curved surface?

Album here with pictures of it before and after I Wrap it

Thanks,

Kyle

SolidworksSketching