“When I was little, I used to love to read the classified ads in Autoweek,” says Randy Nonnenberg, the Bring a Trailer cofounder and chief executive, his bright blue eyes flashing at the memory. “I’d ...

We’ve all been there, toiling and complaining about selling a used car. The ad-writing, back and forth negotiation, the paperwork; after all of that, finding the right one to buy was just as difficult ...