Because cars are a high $ item vs. shoes. A business's overheads don't scale linearly with item price, so it's possible for a car mfg to achieve a similar net p

Because cars are a high $ item vs. shoes. A business's overheads don't scale linearly with item price, so it's possible for a car mfg to achieve a similar net profit margin to a shoe mfg but with substantially lower gross profit margins.