Unless you run on the same stretch of road, with the same temperature and humidity, with no wind, no bumps in the road completely smooth, the moon and sun in the same place ( because lets face it the pull of the moon and sun will either slow the car up or speed it up.
) and don't forget your tyres will have to be changed after each run with identical tyres because after one run they will be slightly different.
O year and im sure there will be slight wear to engine components so hmmm that might be another veriable.
sorry for this post just being silly, the point is you will neva get two identical runs so, well yer just life aint it.