To win the “Driving in the 90’s” Trial in Forza Horizon 6, players must use an A-Class (700 PI) Retro Supercar from the 1990s. The 1994 Ferrari F355 Berlinetta, equipped with tune code 164 161 714, provides the necessary braking and acceleration to overcome Unbeatable Drivatars on tight Tokyo tracks. Success in this Horizon Decades Autumn Season event relies on team-based blocking strategies to secure the 1999 Lamborghini Diablo GTR.
Key Takeaways
- Required Car: 1990s Retro Supercar tuned to A-Class (A700).
- Top Recommendation: 1994 Ferrari F355 Berlinetta (Tune Code: 164 161 714).
- Primary Objective: Secure 2 out of 3 race wins as a team to unlock the 1999 Lamborghini Diablo GTR.
- Winning Strategy: Focus on blocking AI Drivatars rather than individual placement to help struggling teammates pass.
Driving in the 90’s Trial Restrictions & Rewards
The Trial remains the most challenging weekly co-op event in the Forza Horizon 6 Festival Playlist. For Series 2 (Horizon Decades), the Autumn Season task, “Driving in the 90’s,” forces a strict performance cap. You are limited to A-Class Retro Supercars produced between 1990 and 1999.
Completing this event is essential for collectors, as it serves as the primary way to unlock the 1999 Lamborghini Diablo GTR. Since you are racing against a full squad of “Unbeatable” Drivatars, bringing a stock car is rarely sufficient; a specialized tune is mandatory for consistent wins.
Best Ferrari F355 Berlinetta Tune (A700)
While several cars qualify, the 1994 Ferrari F355 Berlinetta stands out due to its balanced mid-engine layout. In the tight street circuits found in the Tokyo map areas, handling and “launch” are more valuable than raw top speed.
- Tune Code: 164 161 714
- Build Focus: Braking stability and corner-exit acceleration.
This setup allows you to dive deep into corners during the “Rainbow Bridge Descent” and maintain composure through the “Tokyo City Docks” section, where barriers are frequent and unforgiving.
Trial Walkthrough and Strategy
The Trial is a best-of-three series. Scoring is based on the total positions your human team holds relative to the Drivatars. If your team earns more points than the AI, you win the round.
Race 1: Rainbow Bridge Descent
The first race features high-speed descents with technical chicane sections. Use your superior braking to gain positions early. If you reach the top three, your priority shifts: slow down slightly at the apex of narrow turns to “anchor” the AI cars behind you. This creates a gap for your teammates to catch up.
Race 2: Tokyo City Docks Charge
This circuit is notorious for “chaos at the start” due to tight dockland corridors. Avoid aggressive contact with teammates. Even if you are faster, ramming a teammate into a wall costs the team points. Keep a clean line, and use the Ferrari’s acceleration to pull away from the pack once you clear the initial scrum.
How to Win as a Team
The most common reason players fail The Trial isn’t the AI—it’s lack of cooperation. In Forza Horizon 6, the Drivatars are programmed to be aggressive. By working as a unit and prioritizing the team score over individual glory, you can easily secure the 2-0 victory and add the Lamborghini Diablo GTR to your garage.
For more specific car builds and seasonal help, check out our other Forza Horizon 6 car guides to stay ahead of the pack.

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