The grinding sound that you hear is generally indicative of a bad starter drive gear. The gear is attempting to interconnect with the engine flywheel gear and the grind is a clear indication that something is wrong. This situation will need mechanical attention, but before calling for a tow you can try and start the car a few additional times to drive it to the station and avoid the tow costs. If you do wish to attempt to restart it, here's how: 1. Be Gentle and Patient First, give the car a few minutes. Then turn the key to the start position and see if the gear will engage. If you hear the grind again, immediately turn the key to the off position. You may try this a few times waiting a couple of minutes between each. If the car will still not start, and you have the time, try it again a few hours later, and the next morning. Your only goal here is to get the car started "one more time" so you can drive it to the repair shop to avoid the tow costs. If the car will not start after you have given it time and multiple tries, you will need to have it towed in and repaired.