Barn Finds are the ultimate secret car class of collectibles in Forza Horizon 6. Not only are they locked behind progression in the Discover Japan of the Campaign Collection Journal, but they also need to be carefully restored over time after recovering them.
This Forza Horizon 6 guide is a listing of all 15 Barn Finds, their general regional locations, and the Discover Japan Stamp unlock requirements before they will even spawn.
2005 Honda NSX-R GT
B 608
RWD
Ohtani Region
South-east of Kinkaku-ji Temple
Requires Discover Japan Yellow Stamp
1987 Ford Sierra Cosworth RS500
C 484
RWD
Ito Region
In a clearing in the south-east of the fields
Requires Discover Japan Green Stamp
1969 Toyota 2000GT
D 377
RWD
Ito Region
Near the beach on the south-eastern coastline
Requires Discover Japan Green Stamp
1989 Nissan PAO
D 145
FWD
Minamino Region
Requires Discover Japan Blue Stamp
1971 Nissan Skyline 2000GT-R
D 380
RWD
Nangan Region
Requires Discover Japan Blue Stamp
1982 Porsche 911 Turbo 3.3
B 550
RWD
Ohtani Region
Requires Discover Japan Pink Stamp
1984 Peugeot 205 Turbo 16
C 500
AWD
Shimanoyama Region
South-west of Narai-Juku
Requires Discover Japan Pink Stamp
1962 Lincoln Continental
D 267
RWD
Hokubu Region
Requires Discover Japan Pink Stamp
1998 Nissan #23 Pennzoil NISMO Skyline GT-R
S2 848
RWD
Takashiro Region
Requires Discover Japan Pink Stamp
1997 Mitsubishi Montero Evolution
D 346
AWD
Shimanoyama Region
Requires Discover Japan Orange Stamp
1997 Lamborghini Diablo SV
A 649
RWD
Ito Region
Requires Discover Japan Orange Stamp
1998 Nissan R390 (GT1)
S1 774
RWD
Ohtani Region
Requires Discover Japan Purple Stamp
2005 Mitsubishi #1 Sierra Sierra Enterprises Lancer Evolution Time Attack
R 962
AWD
Shimanoyama Region
Near Narai-Juku
Requires Discover Japan Purple Stamp
1983 Nissan #11 Tomica Skyline Turbo Super Silhouette
S2 847
RWD
Ito Region
Requires Discover Japan Gold Stamp
1991 Mazda #55 Mazda 787B
R 988
RWD
Takashiro Region
West of Hirosaki Castle/North-west of Soni Circuit
Requires Discover Japan Gold Stamp
Those are all 15 Barn Finds to be discovered in Forza Horizon 6 with their unlock requirements.