What wrong a car that just stops running well your driving but does sputter and will not start afterwards?

A car that sputters and then stops running while driving may have issues such as a failing fuel pump, clogged fuel filter, or a malfunctioning ignition system. These problems can disrupt the flow of fuel or spark needed for the engine to operate properly. Additionally, a faulty sensor, like the mass airflow sensor or crankshaft position sensor, could also cause similar symptoms. It's best to have a mechanic diagnose the issue for an accurate repair.