Preheat grill to 400 degrees F. Place wheels of brie on soaked plank and top each wheel with ¼ cup of preserves. Transfer to grill and allow brie to cook over indirect heat for 10 to 20 minutes, or until softened and starting to ooze.
Toss grapes in olive oil and salt before grilling on direct heat for about 5 to 7 minutes, turning occasionally, until blistered. Place grilled grapes on empty space of plank before drizzling entire serving with honey. Serve with crusty baguette, crackers, or grilled sourdough.