Just curious, what would it take to exceed the weight limit of a non-cdl UPS cage car? We had a huge shipment of hardback textbooks. Each box ranged from 30 to 50 lbs with between 600-875 pcs. One driver said the vehicle looked overloaded, and it was more difficult to drive. I could only do about 45-50mph on the freeway and took quite a bit of space to slow down. Was I even close to max weight and how would I know? Is it the pre-loads responsibility to not exceed weight limits? Just curious, was I a little concerned over nothing?