This is my list of known Hot Wheels Castings that represent Japanese vehicles.

July 2 2016 - ​I'm still currently editing this list, but if you think I've missed something, please let me know.

♥  TOYOTA 
TOYOTA 2000GT  
TOYOTA 2000GT Convertible (James Bond version) 
'10 Toyota Tundra  
'87 Toyota Truck 
Toyota Baja Truck / Toyota Off Road Truck - including SUPER TREASURE HUNT!!     
Toyota AE-86 Corolla - including Super Treasure Hunt  
'70 Toyota Celica 
'82 Supra  (This is the older casting from 1984)
'82 Supra (retool) 
TOYOTA RSC 
TOYOTA  SUPRA (2013 casting)  
SCION FRS
SCION xB 
Super Tsunami 
Power Pro - Super Tsunami gets a new name
 
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♦ ACURA  
2017 Acura NSX   
Custom 2001 Acura Integra  
Acura HSC Concept
Acura NSX (racing version)
'90 Acura NSX (new casting for 2015)  SUPER TREASURE HUNT  
'12 Acura NSX Concept 
 
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♦ HONDA 
2014 Honda Odyssey  
Honda Monkey Z50 
1990 Honda Civic EF  
Honda Civic (Type R) 
Honda Civic SI (Coupe)  
Honda Civic SI  
Honda Racer   
Honda S2000   
1985 Honda CRX (2016 casting)  
 
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♦ INFINITI  
'10 Infiniti G37 
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♦ ISUZU  
1999 Isuzu VehiCROSS 

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♦ MAZDA
Mazda Miata MX-5  (2016 casting)
MAZDA RX-3 
Mazda RX-7  
24/Seven  

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♦ MITSUBISHI 
2008 Lancer Evolution  
 
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♦ NISSAN / DATSUN
Nissan Fairlady Z  
96 Nissan 180SX Type X    
Nissan GTR R34 : Nissan Skyline GT-R R34  (2010 casting)  
Nissan Skyline H/T 2000GT-R : "Kenmeri"  (2011 casting)  
Nissan Skyline H/T 2000GT-X :  "Hakosuka" (2011 casting)   
Nissan Titan Truck 
Nissan 300 ZX  
Nissan 300 ZX 'Custom Z'  
Nissan 350Z   
Nissan 370Z    
Nissan Hardbody (truck) 
Nissan Silvia (S15)  
Nissan Skyline : GT-R R32  (2002 casting)
2009 Nissan GT-R  
Datsun 200 SX 
Datsun 240Z  
'71 Datsun Bluebird 510 Wagon 
Datsun Bluebird 510  
Datsun 620 Truck   
 
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♦ SUBARU
BRAT 
Subaru Impreza 
Subaru WRX STI  
 
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♦ FANTASY
MAD MANGA   
TIME ATTAXI