The sprint in the canyon they are easy to beat but In the city race get the corvette z06 equip every performance parts then you'll be the winner also use corvette to beat Darius Note: When getting the tires on the corvette you must use grip
Have you heard of the final boss, Darius, well let me give you a hint. The Audi R8. Now the way I did it was to use the Mercedes Benz Mclaren, upgrade it to the max, if you can. All you have to do is just to try to follow him as possible you can. Although it may take your whole life to beat him.