A vehicle and methods of proximity-based engine control for a vehicle as automatically implemented by a computing device are disclosed. One method includes determining a distance between the vehicle and a preceding obstacle. If the distance between the vehicle and the preceding obstacle is below a threshold distance, the method further includes determining whether a vehicle brake is being applied. If the vehicle brake is not being applied, the method further includes detecting a throttle position for an engine throttle. If the throttle position is above a threshold throttle position, the method further includes sending a command to modify the throttle position to a restricted throttle position. If the throttle position is above the threshold throttle position, the method can optionally include sending a command to modify ignition timing for a vehicle engine or sending a command to apply the vehicle brake.