Forza Horizon 6 Theory of Evolution Weekly Challenge Guide: Sekibe Time Attack and Festival Loop Speed Zone

The Theory of Evolution Weekly Challenge is one of the highlights of the latest Festival Playlist in Forza Horizon 6. Using the legendary 2001 Mitsubishi Lancer Evolution VI GSR TM Edition, you'll complete four objectives, including the tricky Sekibe Time Attack and Festival Loop Speed Zone. If you're struggling with either challenge, this guide will help you finish everything quickly and claim your rewards.

 

Step 1: Get the Right Car

Before you can begin, make sure you own the 2001 Mitsubishi Lancer Evolution VI GSR TM Edition. This is the only eligible vehicle for the Weekly Challenge, and every objective must be completed with it. Once you get behind the wheel, the first chapter is automatically completed.

If you're missing the car, simply spend your accumulated Forza Horizon 6 Credits to buy it from the Autoshow or Auction House, then jump in to instantly complete the first chapter.

 

Complete the Sekibe Time Attack

The second objective requires you to complete three laps at the Sekibe Time Attack circuit.

Fortunately, you don't need to finish first or set a record-breaking lap. Simply complete all three laps in the Evo VI, and the objective will count. Since the course features plenty of gravel sections, equipping a rally-focused tune greatly improves stability and cornering speed. A popular community recommendation is the B600 rally tune (Share Code: 217 948 137) for consistent handling.

 

Earn 3 Stars at Festival Loop Speed Zone

This is the most difficult part of the challenge.

The Festival Loop Speed Zone is located on the southern edge of the Horizon Festival grounds in the Ohtani region. To earn three stars, you'll need to maintain an average speed of 90 mph throughout the short dirt section.

The stock Evo VI usually isn't fast enough, so upgrading the car to S1 Class is highly recommended. Many players use the 129 741 033 dirt tuning setup, which provides enough speed while maintaining excellent grip on dirt and snow-covered roads. Focus on carrying momentum through both corners instead of braking too hard.

 

Finish with Any Dirt Race

After completing the Speed Zone, all that's left is winning a Dirt Race.

The Chiheisen Scramble is an excellent choice because its layout suits the Evo VI perfectly. Switching back to a rally tune gives better traction, and lowering the Drivatar difficulty can help you secure an easy victory if needed.

 

Rewards Worth Claiming

Completing every chapter of the Theory of Evolution Weekly Challenge rewards you with:

25,000 Credits

5 Forzathon Points

These rewards contribute toward unlocking additional Festival Playlist prizes before the season ends.

 

Final Tips

Don't attempt the Festival Loop Speed Zone with a completely stock Evo VI. A proper dirt or rally tune makes the challenge dramatically easier and saves multiple retries. If you're short on Credits for upgrades, using cheap Forza Horizon 6 Credits can help you prepare the Evo VI faster and complete the Weekly Challenge before it expires.