Vehicle driving mode display device and program for displaying vehicle driving mode

A recording medium for storing a computer-program for causing a vehicle driving mode display device to perform functions of:

• displaying a screen where a running speed pattern, a tolerance range of the running speed pattern and a vehicle speed at the moment are plotted on a graph where time and the vehicle speed are plotted on each axes;
• judging whether or not a following first condition or a following second condition is satisfied in a case that the vehicle is driven within the tolerance range;
• and
• if satisfied, issuing a warning, wherein the first condition is a case in which a difference between a standard speed indicated by the running speed pattern and the vehicle speed is gradually widened as time elapses and wherein the second condition is a case in which the vehicle speed exceeds the tolerance range within a predetermined allowable time period when an acceleration at the moment is presumed to be kept.