Glovebox/Trunk Size Bug

The space allocated to the glove box/trunk can't be utilized perfectly. Having item/s placed that weigh exactly 50 units can not be placed in the glove box that can hold 50 units. Same with the trunk. Both my Glendale custom and my surfer can not fit exactly 250/500 units respectively. I have tested this with only duffel bags since i cant get a collection of items that weight exactly 250/500