Information processing device and vehicle

An information processing device mounted on a first vehicle and comprising a processor configured to:

• acquire an inter-vehicle distance between the first vehicle and a second vehicle traveling in front of the first vehicle in a traveling direction of the first vehicle and a specified value of an inter-vehicle time that is required for the first vehicle to reach a position at which the second vehicle is located;
• cause a meter display in a vehicle cabin of the first vehicle to display a graphic image representing the specified value of the inter-vehicle time;
• and
• determine whether a magnitude of a change in the inter-vehicle distance exceeds a predetermined threshold, wherein the processor is configured to
• cause the meter display to display the graphic image in white in a case where the processor determines that the magnitude of the change is equal to or less than the predetermined threshold, and
• cause the meter display to display the graphic image in black in a case where the processor determines that the magnitude of the change exceeds the predetermined threshold.