Unlike GT4 B-spec is actually part of the game in GT5. I don't think you can get to 100% without them. Plus they will get you some cool cars in their races that you won't get using just A-spec.
Unlike GT4 B-spec is actually part of the game in GT5. I don't think you can get to 100% without them. Plus they will get you some cool cars in their races that you won't get using just A-spec.