How to Complete Forza Horizon 6’s “Theory of Evolution” Weekly Challenge
The “Theory of Evolution” Weekly Challenge in Forza Horizon 6 asks you to complete four separate tasks using a very specific car: the 2001 Mitsubishi Lancer Evolution VI GSR TM Edition. You’ll be able to start the challenge after earning the Rookie Yellow wristband in the main story, though it’s possible you may have already knocked out the first step while progressing through that story. Here’s a complete breakdown of every task and how to finish them efficiently.
How to Complete the Theory of Evolution Weekly Challenge — All Tasks
To complete the “Theory of Evolution” Weekly Challenge, you’ll work through four tasks. They’re located in the Winter portion of the game’s Festival Playlist and become available once you finish the Rookie Yellow wristband event.
Theory of Evolution Task 1: Get a 2001 Mitsubishi Lancer Evolution VI GSR TM Edition
The 2001 Mitsubishi Lancer Evolution VI GSR TM Edition is an exclusive vehicle you can obtain from the Autoshow.
Open the main menu, then go to Buy & Used, and find the car under the Cars category.
Next, head into the Mitsubishi category. You can purchase the vehicle for 70,000 Credits.
After buying it, you only need to drive the car around for a few seconds. Once you’ve done that, the first task is complete and the next one in the series unlocks.
Theory of Evolution Task 2: Complete 3 Laps at Sekibe Time Attack
For the second task, you’ll take the 2001 Mitsubishi Lancer Evolution VI GSR TM Edition to the Sekibe Time Attack circuit. Your job is to complete three laps in this vehicle.
The Sekibe Time Attack track is located to the east of Tokyo City, in the Ito Region.
When you arrive, go to the event’s starting line. You can begin whenever you’re ready—this isn’t a race against other players. Instead, each lap is about improving your own performance so you can chase a better time.
Your personal objective is to beat your previous lap time, but for the Weekly Challenge itself, you only need to finish the three laps. Slower laps won’t penalize you as long as you complete the requirement.
Once you’ve completed three laps at Sekibe, you’ll finish Task 2 and can proceed to the next step.
Theory of Evolution Task 3: Earn 3 Stars at the Festival Loop Speed Zone
Task 3 focuses more on driving consistency. You’ll need to earn three stars at the Festival Loop Speed Zone using the 2001 Mitsubishi Lancer Evolution VI GSR TM Edition.
This Speed Zone is in the Ohtani region, positioned to the northwest of Tokyo City. If you haven’t visited it before, you can use the Horizon Festival Site as a fast travel location.
The Speed Zone challenge requires you to travel through the route with an average speed of 90 MPH. Maintaining that average is the hard part—especially in the default version of the 2001 Evolution.
A practical recommendation is to upgrade the car in the Change Car section of your main menu and push it to at least S1 class. Doing so costs 55,000 Credits, but the improvement should make hitting the speed requirement far more manageable.
When you start the Speed Zone, you can begin from either end. The guide suggests starting from the west side, since it’s easier to build up to higher speeds (at least in their experience). Aim to enter the Speed Zone already going at 100 MPH or more—this helps because you’ll need to carry speed through turns and curves along the route.
At the exit, you’ll want the run to register an average of 90 MPH. If it doesn’t count, you may need to repeat the Speed Zone multiple times to learn where to steer for better momentum and when to brake. If you drive too far off the road, the challenge fails and you’ll have to try again.
Theory of Evolution Task 4: Win a Dirt Race
The final task gives you more flexibility than the previous two. You need to win a Dirt Race while driving the 2001 Mitsubishi Lancer Evolution VI GSR TM Edition.
You can choose any Dirt Race you want. It’s recommended to either pick one you’ve already won previously or complete a race first so you can set up the next attempt more easily.
Once you’ve found a Dirt Race, open the race’s custom menu and adjust the drivers to lower the difficulty. This reduces the pressure and makes it much easier to secure first place.
If you want a Dirt Race near the Festival Loop, there’s one not far away called Chiheisen Scramble. That event supports the 2001 Mitsubishi as a default car choice.
Start the race when you’re ready, and win by being the first car across the finish line. If the default setup still feels too difficult, complete the race at least once, then create your own custom Dirt Race and lower the other drivers’ difficulty. That should make the win requirement achievable.
After you win this Dirt Race, you’ll have completed all four “Theory of Evolution” Weekly Challenges in Forza Horizon 6.
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