The ornamental design for a carroofbracket, as shown and described.
FIG. 1 is a front, right side, top perspective view of a car roof bracket showing my new design;
FIG. 2 is a rear, left side, bottom perspective view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a left side elevational view thereof;
FIG. 6 is a right side elevational view thereof;
FIG. 7 is a top plan view thereof; and,
FIG. 8 is a bottom plan view thereof.
The broken line showing is for the purpose of illustrating portions of the car roof bracket and environmental structure that form no part of the claimed design.