Simplify the following text for a Grade 3 native English-speaking person.
Original: Another modification made to the Imola track is that of the famous Variante Alta which is situated at the top of the hill leading down to Rivazza and has the hardest braking point on the lap .
Simplified: Variante Alta is at the top of the hill leading down to Rivazza . It has the hardest braking point on the lap .