Operating a single-car hauler or a small hot-shot towing setup can generate viable income for independent owner-operators, but financial success requires careful management of diesel fuel expenses, commercial liability insurance premiums, vehicle maintenance costs, and consistent load-board sourcing. Because single-car trailers lack the volume efficiency of large multi-car rigs, operators must focus on high-margin niche segments—such as transporting luxury, classic, exotic, or non-running auction vehicles—to ensure profitable profit margins.