To complete the Forza Horizon 6 Theory of Evolution weekly challenge, you’ll need to use the 2001 Mitsubishi Lancer Evolution VI GSR Tommi Mäkinen Edition to complete three easy objectives. This guide will show you how to complete each of the three challenges: Sekibe Time Attack, Festival Loop Speed Zone, and an easy Dirt Race Strategy to get them all done fast.
Complete Three Laps at Sekibe Time Attack

You will need the 2001 Mitsubishi Lancer Evolution VI GSR Tommi Mäkinen Edition to complete the Weekly Theory of Evolution Challenge. If you don’t already have this vehicle, you can buy it either at the Auto Show or the Auction House.

Your first goal is to run three laps on the Sekibe Time Attack track. Ensure that you access the Time Attack activity (rather than the standard circuit) to achieve this goal.

Beginning the Sekibe Time Attack will require you to go to the Ito region and drive through the starting banner so that the timer starts and you can finish a full three laps. To complete the three laps around the course, you do not need to meet any other player’s time or hit every checkpoint.
After completing, you could simply drive off the course or miss a checkpoint, at which point the activity would be marked complete.
Remember: Since your first lap starts from a standing start, it will naturally be slower than the following laps. Focus on completing all three laps rather than setting a personal best.
Earn Three Stars at Festival Loop Speed Zone

You’ll need to get three stars at the Festival Loop Speed Zone for the second objective in the Ohtani region. You don’t need to achieve all three stars in one attempt, as your current progress will carry over.

Start your run from the left side of the Speed Zone and aim to be traveling at around 100 MPH before climbing the hill. This gives you enough speed to comfortably maintain the required speed and achieve the three-star rating. If you find it difficult to get through the corners, use a hand brake to stay on your line in the dirt sections.
Win a Dirt Race

The final goal is to win a Dirt Race, and the Chiheisen Scramble is a great option since it has a low wristband requirement. After selecting Custom Race from the Race List, adjust the number of AI drivers to zero, set the race length to one lap, and confirm the changes.

If you select the Retro Rally car theme (which will already be set) in event settings, simply select the vehicle 2001 Mitsubishi Lancer Evolution VI GSR Tommi Mäkinen Edition, then start the next race. Because there will be no AI competitors and you will only have to complete one lap, as soon as you finish the race, you’ll automatically finish the final objective as long as you complete the race.

