Simplify the following text for a Grade 8 native English-speaking person.
Original: Pirelli is also the official tyre supplier of the World Rally Championship replacing BF Goodrich for the 2008 season , with all cars using Pirelli tyres and having Pirelli decals on the cars .
Simplified: Pirelli is the official tyre supplier of the World Rally Championship . They replaced BF Goodrich for the 2008 season .