The 1999 Euro Open by Nissan was contested over 8 race weekends/16 rounds. In this one-make formula all drivers had to use Coloni chassis and Nissan engines. 16 different teams and 36 different drivers competed.
For every race the points were awarded: 20 points to the winner, 15 for runner-up, 12 for third place, 10 for fourth place, 8 for fifth place, 6 for sixth place, 4 for seventh place, winding down to 1 point for 10th place. Lower placed drivers did not award points. Additional points were awarded to the driver setting the fastest race lap (2 points). The best 12 race results count, but all additional points count. Three drivers had a point deduction, which are given in ().