Rally Evolved is one of the most drastic updates to the series so far, due to many new updated features. Most notable is the "random event" engine in the game, which creates random hazards which the player must navigate as they drive the course. These random events can be anything from rockfalls from cliffs above, animals on the track or even rivers or pipes spilling water on the road surface, making it slippery. However, some random events are an advantage to the player - other (AI) drivers are on the course (although this is rare as this is not a common occurrence in the real WRC), and the player can pass them (thus beating them on the course). Also, the co-driver keeps players updated on other cars, and occasionally other cars crash and retire from the rally (players can often spot wrecked or overturned cars at the trackside, complete with co-drivers warning oncoming cars).
WRC: Rally Evolved also features new sets of cars, including "Historic" vehicles, essentially the highly-tuned Group B rally cars including the Ford RS200, the Renault 5 Turbo and the Peugeot 205 T16.