After five long years, the scars of the largest, most expensive scandal in automotive history are finally starting to fade.

After a brief hiatus in the spring and summer, Nissan returns with its controversial dealer incentive program, one of the first automakers to do so.

GM believes mayflies, also known as fishflies, are responsible for stubborn black residue dotting more than 2,600 Chevrolet Tahoes and GMC Yukons that were built in Arlington, Texas, and waiting to be shipped to dealerships.

Investment in electric vehicle R&D continues to grow.