The ornamental design for an exteriorsurface of automobilefront trunk/engine space lid, as shown and described.
FIG. 1 is a top perspective view from a front left side showing an exterior
surface of automobile front trunk/engine space lid according to our novel
design; and,
FIG. 2 is a front view of the exterior surface of automobile front
trunk/engine space lid according to our novel design.
The dash line showing of adjacent automobile parts is only for showing the
surrounding environment and is not part of the claimed design.