What is the small black lip under the car for? It's about 2 maybe 3 inches tall and is positioned inbetween the wheels and front bumper? Maybe inline with the wheels?It stretches the entire width of the car... I noticed it today when I had to reverse off of a kerb and herd a scraping noise. As soon as I got home I checked what it was and it seems to have a small chip on it, not bothered about it but if it happens again and cracks or something I'd maybe like to replace it, depending on what it's for. It's a 2008 1.2L Grande Punto, just incase it's model specific?