Article snapshot taken from Wikipedia with creative commons attribution-sharealike license.
Give it a read and then ask your questions in the chat.
We can research this topic together.
The 1998 Euro Open by Nissan was contested over 7 rounds/14 races. This was the first Open Fortuna by Nissan season which would go on to become the World Series by Renault. In this one-make formula all drivers had to use Coloni CN1 chassis and Nissan engines.
For every race the points were awarded to the top ten race finishers: 20-15-12-10-8-6-4-3-2-1. An additional two points were awarded for having the fastest lap.