http://www.gran-turismo.com/kr/products/gt6/

http://www.gtplanet.net/forum/showthread.php?t=260943

For the sake of clarity, the following list will only include cars that are new to the series. 
The cars in this thread will be marked according to the system below :

Cars in blue are confirmed to be in the game (screenshots, trailers, lists, PD statements...)
Cars in red are rumored to be in the game, according to various sources (magazines, websites, shows...)
Cars in orange will be available later as DLC.
Cars carrying the [PREMIUM] tag are standard cars updated into Premium status for GT6..
(All cars will be provided with an ingame image when it becomes available.)
(Note : the system may evolve as new info arise)


The list :


Abarth : (1)
1952 1500 Biposto Bertone B.A.T 1 Concept (Pebble Beach Award 2010)


Acura : (1)
2013 NSX Concept (image)


Alfa Romeo : (2)
2011 TZ3 Stradale Concept
MiTo (source)


Alpine : (2)
1972 A110 1600S
1972 A110 1600S 15th Anniversary Edition [Preorder]


Aston Martin : (1)
1953 DB3S Sports (Pebble Beach Award 2013) (image)


Audi : (8)
1986 Sport Quattro S1 Group B Rally Car
1986 Sport Quattro S1 Group B Rally Car 15th Anniversary Edition [Preorder]
2004 R8 LM Team Veloqx
2011 R18 TDI
2011 R18 TDI 15th Anniversary Edition [Preorder]
2012 R8 LMS Ultra (Audi Sport Team Phoenix)
2012 R8 LMS Ultra 15th Anniversary Edition [Preorder]
TT RS (source)


BMW : (5)
1957 507
2001 Z8
2001 Z8 15th Anniversary Edition [Preorder]
2011 Z4 GT3
M5 (source)


Chevrolet : (6)
1963 Corvette Coupe (C2) [PREMIUM]
1963 Corvette Coupe (C2) 15th Anniversary Edition [Preorder]
1969 Camaro 'Mark Stielow' (SEMA Award 2010) (image)
1971 Camaro 'Mary Pozzi' (SEMA Award 2011) (image)
2014 Corvette Stingray (C7)
2014 Corvette Stingray (C7) 15th Anniversary Edition [Preorder]


Cizeta : (2)
1994 V16T [PREMIUM]
1994 V16T 15th Anniversary Edition [Preorder]


Eckerts : (1)
1969 Ford Mustang Mach Forty (SEMA Award 2012) (image)


Ferrari : (2)
1954 500 Mondial Pinin Farina Berlinetta (Pebble Beach Award 2012) (image)
1971 Dino 246GT


Fisker : (1)
2012 Karma Ecosport


Ford : (6)
1966 GT40 Mk1
1966 GT40 Mk1 15th Anniversary Edition [Preorder]
2013 Focus ST
2013 Focus ST 15th Anniversary Edition [Preorder]
2013 Shelby GT500
2013 Shelby GT500 15th Anniversary Edition [Preorder]


Honda : (1)
HSV-010 GT 15th Anniversary Edition [Preorder]


Hyundai : (2)
Genesis Coupe (source)
Veloster Turbo (source)


Jaguar : (2)
1987 XJR-8 LM (source)
2012 XKR-S


KTM : (3)
2012 X-Bow GT
2012 X-Bow R
2012 X-Bow R 15th Anniversary Edition [Preorder]


Lamborghini : (1)
1974 Countach LP400 [PREMIUM]


Lancia : (2)
1973 Stratos [PREMIUM]
1973 Stratos 15th Anniversary Edition [Preorder]


Lexus : (1)
IS F Racing Concept 15th Anniversary Edition [Preorder]


Light Car Company : (1)
2007 Rocket


Lotus : (2)
1968 Europa S.2
1968 Europa S.2 15th Anniversary Edition [Preorder]


Mercedes : (5)
2011 SLS AMG GT3
2011 SLS AMG GT3 15th Anniversary Edition [Preorder]
2011 SLS AMG GT3 Black Falcon Racing (image)
2013 A45 AMG (source) 
2013 E63 AMG (source)


Nismo : (1)
370Z (Z34)


Nissan : (8)
2008 370Z (Z34) (GT Academy Version)
2008 370Z (Z34) Tuned Car (GT Academy Version)
2011 Leaf G (GT Academy Version)
2012 Deltawing
2012 GT-R black edition (GT Academy Version)
2013 GT-R Nismo GT3 N24 Schulze Motorsport
2013 GT-R Nismo GT3 15th Anniversary Edition [Preorder]
2013 Juke Nismo


Pagani : (2)
2011 Huayra
2011 Huayra 15th Anniversary Edition [Preorder]


Plymouth : (1)
1960 XNR Ghia Roadster (Pebble Beach Award 2011) (image)


Red Bull : (1)
X2014 (image)


Renault : (2)
2011 Megane Trophy V6
2011 Megane Trophy V6 15th Anniversary Edition [Preorder]


Shelby : (2)
1964 Cobra Daytona Coupe
1964 Cobra Daytona Coupe 15th Anniversary Edition [Preorder]


SRT : (2)
2013 Viper GTS
2013 Viper GTS 15th Anniversary Edition [Preorder]


Tesla : (2)
2012 Model S Signature Performance
2012 Model S Signature Performance 15th Anniversary Edition [Preorder]


Toyota : (3)
2012 86 GT 15th Anniversary Edition [Preorder]
GT86 Cup
GT86 GT4


TRD : (1)
2008 TRD 86 Racing (source)


Volkswagen : (2)
2008 Scirocco GT24 Race Car
2008 Scirocco GT24 15th Anniversary Edition [Preorder]


GT6 Master Car List Timeline : 
Aug 6th 2012 : Topic creation. Added 2010 & 2011 SEMA and Pebble Beach winners (confirmed to be in game by PD).
Aug 16th 2012 : Added Hyundai Genesis Coupe and Veloster Turbo as rumoured cars.
Aug 20th 2012 : Added Ferrari 500 Mondial Pininfarina Berlinetta (GT Award winner at Pebble Beach 2012).
Nov 2nd 2012 : Added Eckerts Mach Forty (GT Award winner at SEMA 2012).
May 10th 2013 : Added KTM X-Bow as rumoured car.
May 15th 2013 : Added all cars from the GT6 Announcement Conference.
May 19th 2013 : Added Audi R8 LMS Ultra Bilstein '12.
June 11th 2013 : Added BMW Z4 GT3, Nissan Deltawing & Chevrolet Corvette C7 from the E3 trailer.
June 25th 2013 : Added cars from the preorder announcement.
August 19th 2013 : Added Aston Martin DB3S Sports (GT Award winner at Pebble Beach 2013).
August 20th 2013 : Added cars from the Gamescom trailer.
September 28th 2013 : Added Red Bull X2014.

- 비전그란투리스모 프로젝트 (18개社 참여)

Alfa Romeo / Alpine / Aston Martin / Audi / BMW / Bertone / GM Design / Honda

Infiniti / Italdesign Giugiaro / JORDAN Brand / Mercedes-Benz / Nike / Nissan

Peugeot / SRT(Chrysler) / Volkswagen / Zagato

- 아일톤 세나 콘텐츠

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출처: 루리웹

(http://bbs2.ruliweb.daum.net/gaia/do/ruliweb/default/ps/93/read?bbsId=G003&itemId=1&articleId=1228300)

젠쿱, 벨로스터 나온다는거에 기대 되는군요 ㅎ