Forza Horizon 6 is packed with some incredible cars, but if you love technical racing, there is one absolute beast you need to keep an eye out for: the 2005
Mitsubishi #1 Sierra Sierra Enterprises Lancer Evolution Time Attack. This is not your average street-tuned Evo; it is an elite, purpose-built R-class track monster that represents the absolute peak of real-world time attack heritage.
With its aggressive all-wheel-drive (AWD) setup and insane aerodynamics, this car is tailor-made for dominating tight, technical tarmac tracks and carving up the narrow mountain touge runs across the game's Japan-inspired map.
Here is everything you need to know about tracking down this legendary machine, how it performs out of the box, and how to get the most out of it on the road.
Barn Find Location & How to Unlock
You cannot just head over to the Autoshow and buy the Sierra Sierra Evo with your hard-earned credits. Because of its legendary status, it is hidden away as a Barn Find.
Region: Shimanoyama Region
How to trigger the unlock: You will need to play through the standard progression of the game until the map finally drops a rumor circle over the Shimanoyama sector.
Finding the barn: Once the rumor is active, you will need to head into the wilderness. Look for off-road forest trails and look closely through the dense trees. You are looking for the classic old corrugated metal barn hidden away from the main roads.
Restoration: Once you discover the barn, a cutscene will play, and the car will be sent back to your garage. You will have to wait out a restoration period while your mechanics get it back into racing shape before you can finally take it for a spin or start upgrading it.
Stock Performance & Base Statistics
When it finally rolls out of your garage, the Sierra Sierra Evo is already a highly specialized weapon. Thanks to its extreme real-world motorsport tuning, massive wings, and high-downforce bodywork, its base stats are heavily skewed toward instant acceleration and physics-defying cornering.
Performance Index (PI): R 962
Drivetrain: AWD (All-Wheel Drive)
Engine: Cosworth 4G63 turbocharged 2.2-liter inline-four
Power: ~950 hp (708 kW) / 703 ft·lb (953 N·m) of torque
Transmission: Quaife 5-speed sequential
Here is how those numbers translate to the standard 1-10 performance scale and actual in-game capabilities:
Speed (6.5): Top Speed: 183.2 mph (294.8 km/h)
Handling (9.1): Lateral Gs: 1.38 G @ 60 mph (97 km/h)
Braking (7.8): Weight Distribution: Front-biased track layout
Acceleration (10.0): 0-60 mph (0-97 km/h): 2.500 seconds
Best Uses & Tuning Guide
Because this car was built for time attack events, it has a very distinct personality in Forza Horizon 6. Knowing where to use it—and where to avoid using it—makes all the difference.
The Strengths
With a perfect 10.0 for Acceleration and a massive 9.1 for Handling, this car is an absolute rocket out of slow corners. The AWD system pulls you forward with zero wheelspin, and the car feels absolutely glued to the asphalt on technical tracks with short straights. It changes direction instantly and handles heavy braking zones like a champion.
The Weaknesses
That massive aerodynamic bodywork creates a ton of drag. In its stock form, the top speed is severely capped at just 183.2 mph. If you take this thing to a long highway drag strip or a high-speed sprint race with massive straights, you are going to get flown past by cars with much higher top-end speeds.
How to Optimize and Build It
The S2 Class Conversion: If you want to make this car a bit more versatile for different track layouts, you can easily optimize its power band. One of the first things you should do is swap out the stock Quaife 5-speed sequential transmission for a modern 6-speed or 7-speed race gearbox.
Beating the Drag: If you go into the tuning menus and minimize the rear aerodynamic downforce angle, you can actually reduce enough drag to squeeze past the 200 mph barrier. Doing this transforms the car into an almost unbeatable S2-class short-circuit racer.
The Ultimate Touge King: If you leave the high-downforce settings intact, this car is arguably one of the single best choices in the entire game for attacking narrow mountain hairpins. The aggressive AWD system grabs the pavement and digs into corners effortlessly, making it incredibly easy to maintain momentum on switchbacks where heavy rear-wheel-drive cars struggle to find traction.