Why do sparks come out of f1 cars?

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Tags

1. #suspension
2. #pushes
3. #downforce
4. #produce
5. #ground
6. #underneath
7. #titanium
8. #harder
9. #sparks
10. #causing
11. #plate
12. #travelling
13. #compressing
14. #producing
15. #there
16. #along
17. #speed