On-track data is presented in an easy to view format. Data channels are placed above the graph area, providing real time display of values, relative to the position of the cursor in the graph area. Comparison of single or multiple lap data is accomplished by selecting the desired channels, in the desired color providing easy to read graphed data. Graphed data provides quick visual clues for comparison and analysis. Vehicle location on the track is provided both by track segmentation numbers located at the top of the graph area and by the track map, in view below the graph area.