What would u change in F1 rules

[vanquish]

in 2003 fuel regulations made start of the season very exciting. First races were incredible. Towards the end of the season every team learned how to play with fuel levels and races became back to normal.
If u could something in F1 rule book to make races more exciting, what would it be?

My suggestion is new rear wing for all teams. The difficulty in overtaking is the lack of grip behind other car. The closer you are the less downforce you get. Remember time ~1990 when slipstreaming was a huge advantage. Of course, that kind of change would be hard to justify. My second suggestion is to abandon using tracion control. I'd like to see sliding again!!