"I've been going for 50 M/H but it still doesn´t seem to end..."
If he meant time, as the phrasing implies i've got no clue.
If he meant a speed of 50 meters per hour he is literally going at a snails pace, so i don´t know why he thinks he'll get to the end of anything.
If he meant a speed of 50 Miles per hour (80 Km/h) his speed allows him to be on a higway and breaks the human speed record by almost twice as much speed. He doesn´t make note of that so im guessing that's not it either.
If he meant meters per second he's breaking most highways speed limits.
And lastly if he meant Miles per second he is going a quarter of a million kilometers per hour.
None the interpretations of the translation make any sense, fuck this.