Forza Motorsport 2

You'll need to buy 95 cars to get this achievement which could cost a maximum of 10,470,500 credits if you were to buy them all at full price. However, you can win quite a few from various races, you'll be gifted a few from levelling up and you'll earn a 50% discount on all cars in your current region after reaching level 30. So, that huge bill could come down to 3,181,500 credits. Don't forget to look for bargains in the auction house too. Cars required: -

HONDA
# 8 ARTA NSX (2005)
#16 G'ZOX NSX (2003)
#18 TAKATA DOME NSX (2005)
Aerogear Integra Type-R (2000)
Civic 1.5 VTi (1994)
Civic Si Coupe (1999)
Civic Type-R (2004)
CR-X Del Sol SiR (1995)
CR-X SiR (1991)
Do-Luck NSX (1994)
Integra Type-R (2000)
Integra Type-R (2002)
Mugen Civic Type-R (2004)
Mugen Integra Type-R (2002)
Mugen S2000 (2003)
NSX-R (1992)
NSX-R (2005)
NSX-R GT (2005)
Prelude SiR (2000)
S2000 (2003)
Wings West Civic Si (2004)

MAZDA
AB Flug RX-7 (1995)
Axela Sport 23S (2005)
INGS RX-7 (1995)
MAZDASPEED Familia (2001)
MAZDASPEED Roadster (2001)
RE-Amemiya RX-7 (1995)
RX-7 (1997)
RX-7 Spirit R Type-A (2002)
RX-8 MAZDASPEED (2004)
Savanna RX-7 (1990)

MITSUBISHI
Eclipse GSX (1995)
Eclipse GT (2006)
Eclipse GTS (2003)
FTO GP Version R [1998]
GTO (1997)
HKS Racing Performer CT230R Evolution (2006)
Lancer Evolution IX GT (2006)
Lancer Evolution VI GSR (1999)
Lancer Evolution VIII GSR (2004)
Lancer Evolution VIII MR (2004)
MINE'S CP9A Lancer Evolution VI RS (1999)
Sparco Lancer Evolution VIII (2003

NISSAN
# 3 HASEMISPORT ENDLESS FAIRLADY Z (2003)
#12 CALSONIC SKYLINE (2003)
#23 XANAVI NISMO GT-R (2003)
#32 Nissan Motorsport R390 GT1 [1998]
#46 Team MOLA Dream Cube's ADVAN FAIRLADY Z (2005)
Fairlady Z (Z33) (2003)
Fairlady Z 432 (PS30) (1969)
Fairlady Z 432-R (PS30SB) (1969)
Fairlady Z Version S Twin Turbo (Z32) (1994)
MINE'S R32 Skyline GT-R (1993)
MINE'S R34 Skyline GT-R (2002)
R390 GT1 Road Car [1998]
Silvia K's (S14) (1994)
Silvia K's CLUB Selection (S13) (1992)
Silvia Spec-R (S15) (2000)
Skyline Coupe 350GT (V35) (2003)
Skyline GT-R V-Spec (R32) (1993)
Skyline GT-R V-Spec II (R34) (2002)
Skyline GT-R V-Spec II Nür (R34) (2002)
Tommy Kaira Skyline GT-R R34 (2002)
Top Secret Silvia D1-Spec S15 (2000)

SUBARU
#77 Cusco Subaru ADVAN Impreza (2003)
Impreza 22B STi [1998]
Impreza WRX STi (J-Spec) (2004)
Impreza WRX STi (J-Spec) (2005)
Legacy B4 2.0 GT (2005)
Tommy Kaira Impreza M20b [1998]

TOYOTA
# 3 Toyota Motorsports GT-ONE TS020 (1999)
# 6 EXXON Superflo Supra (2005)
#25 Eclipse Advan Supra (2006)
#35 Yellow Hat YMS Supra (2004)
#36 OPEN INTERFACE TOM'S SUPRA (2005)
2000GT (1969)
AB Flug S900 Supra Turbo [1998]
AE86 Sprinter Trueno GT Apex (1985)
Altezza RS200 (2004)
APR Performance Celica GTS (2003)
Border MR2 Turbo T-bar (1995)
Celica SS-I (2003)
Do-Luck Supra (1992)
MR2 GT (1995)
MR-S (2002)
Soarer 430SCV (2002)
Supra 2.0 GT Twin Turbo (1992)
Supra RZ [1998]
Tom's T020 MR2 (1995)
Tom's W123 MR-S (2002)
Tom's Z382 Soarer (2002)
Top Secret 0-300 Toyota Supra (1998)
VeilSide Supra Fortune 03 [1998]
VeilSide Supra Fortune 99 [1998]
VIS Racing MR2 Turbo T-bar (1995)