More than three decades after Honda Motor Co. first built an Accord sedan at its Marysville, Ohio, factory in 1982, humans are still an integral part of the assembly process — and that's unlikely to change anytime soon.

Even as doom-and-gloom reports suggest robots are poised to replace human labor and automotive upstarts like Tesla Inc. aim to largely remove people from the production line, workers keep toiling side by side with machines in Marysville. And Honda's approach is working: The Accord won the prestigious North American Car of Year award at last week's Detroit auto show.

"We can't find anything to take the place of the human touch and of human senses like sight, hearing and smell," Tom Shoupe, the chief operating officer of Honda's Ohio manufacturing unit, said in an interview.