Notes

===Manufacturers===
<pre>
artmorrison
astonmartin
autobianchi
autounion
caterham
holden
jayleno
mg_mini
nike
vemac

aprilia
buell
ducati
kawasaki
moriwaki
moriwaki_motul
mvagusta
trickstar
yamaha
yoshimura
yoshimura_suzuki
ysp_presto
_7honda
</pre>

These are mostly leftovers from GT4, but some of them like Autobianchi or Holden can be seen in 2009 Gamescom videos. However, Kawasaki, Ducati, and the other motorcycle manufacturers are also mentioned, probably ''Tourist Trophy'' leftovers. In addition, Art Morrison is also mentioned; it is possible that the Art Morrison Corvette would be added to the game, joining the game's list new for GTPSP cars such as the GT by Citroen, Nissan GT-R SpecV, etc.

Some of these manufacturers also have their own logo images.

{| class="wikitable"
!Manufacturer
!Small size logo
!Big size logo
|-
|'''Art Morrison'''
|[[File:Gtpsp artmorrison.png]]
|[[File:GTPSP artmorrison big.png]]
|-
|'''Aston Martin'''
|[[File:Gtpsp astonmartin.png]]
|[[File:GTPSP astonmartin big.png]]
|-
|'''Autobianchi'''
|[[File:Gtpsp autobianchi.png]]
|[[File:GTPSP autobianchi big.png]]
|-
|'''Caterham'''
|[[File:Gtpsp catheram.png]]
|[[File:GTPSP caterham big.png]]
|-
|'''Holden'''
|[[File:Gtpsp holden.png]]
|[[File:GTPSP holden big.png]]
|-
|'''Jay Leno'''
|[[File:Gtpsp jayleno.png]]
|[[File:GTPSP jayleno big.png]]
|-
|'''MG Mini'''
|[[File:Gtpsp mgmini.png]]
|[[File:GTPSP mgmini big.png]]
|-
|'''Nike'''
|[[File:Gtpsp nike.png]]
|[[File:GTPSP nike big.png]]
|-
|}

==Unused Car Textures==
[[File:GT PSP Ferrari F2007 Logo Textures.png|If you try to scan the barcode, the tobacco police will spawn at your door!]]

One of the texture files for the Ferrari F2007 includes the controversial barcodes that is commonly associated with a certain cigarette brand that sponsored Ferrari at that time. These were probably left unused to avoid controversy pertaining to the inclusion of the barcode. (During the 2010 season, Ferrari started to remove the barcode from their Formula One cars when this issue was actually brought up).

Curiously, there is also an uncensored logo for Martini, a brand of alcoholic beverage (usually associated with Lancia Delta rally cars; both the S4 Group B and HF Integrale Group A are in the game with the Martini writings censored), which is a minor Ferrari sponsor at that time, and the logo in question is actually ''used!'' The PS3 version of the car in GT5 omitted the Martini logo. <!-- dunno with GT5P -->

==Unused Car Colors==
All Special Color variations from ''[[Gran Turismo 4]]'' appear here, but they do not appear in color list in the car purchase screen. With no way to obtain them normally, these special color models end up unused. Also, with some debugging, it is possible to see thumbnails of these vehicles.

{| class="wikitable"
!Car/Color Name
!Notes
!In-game Picture
!Thumbnail Picture
|-
|'''Citroen 2CV Type A '54''' (Pêche)
|From '''2HP-2CV Classics''' one-make race.
|[[File:GTPSP 2cv pink - og res.png]]
|[[File:GTPSP 2CV pink thumb.png]]
|-
|'''Daihatsu Storia X4 '00'''/'''Daihatsu Sirion X4 (J) '00''' (Emerald Green Metallic)
|From '''Copen Race''' one-make race.
|[[File:GTPSP sirion green - og res.png]]
|[[File:GTPSP sirion green thumb.png]]
|-
|'''Isuzu 117 COUPE '68''' (Maple Orange)
|From '''Isuzu Sports Classics''' one-make race.
|[[File:GTPSP 117coupe orange - og res.png]]
|[[File:GTPSP isuzu117 orange thumb.png]]
|-
|'''Mazda RX-8 Concept (Type-II) '01''' (RX-8 Brilliant Black)
|In GT4 GT-Mode, this car has only "RX-8 Yellow" color available. However, in Arcade Mode it has 6 more colors: these ended up unused in this game.
|[[File:GTPSP rx8 black - og res.png]]
|[[File:GTPSP RX-8 Black thumb.png]]
|-
|'''Mazda RX-8 Concept (Type-II) '01''' (RX-8 Greyish Green)
|As above.
|[[File:GTPSP rx8 green - og res.png]]
|[[File:GTPSP RX-8 green thumb.png]]
|-
|'''Mazda RX-8 Concept (Type-II) '01''' (RX-8 Pure White)
|As above.
|[[File:GTPSP rx8 white - og res.png]]
|[[File:GTPSP RX-8 white thumb.png]]
|-
|'''Mazda RX-8 Concept (Type-II) '01''' (RX-8 Sports Blue)
|As above.
|[[File:GTPSP rx8 blue - og res.png]]
|[[File:GTPSP RX-8 Blue thumb.png]]
|-
|'''Mazda RX-8 Concept (Type-II) '01''' (RX-8 Sunlight Silver)
|As above.
|[[File:GTPSP rx8 silver - og res.png]]
|[[File:GTPSP RX-8 silver thumb.png]]
|-
|'''Mazda RX-8 Concept (Type-II) '01''' (RX-8 Brilliant Red Mica)
|As above.
|[[File:GTPSP rx8 red - og res.png]]
|[[File:GTPSP RX-8 red thumb.png]]
|-
|'''Renault AVANTIME '02''' (Jaune)
|From '''Megane Cup''' one-make race. No thumbnail.
|[[File:GTPSP avantime yellow - og res.png]]
|
|-
|'''Subaru 360 '58''' (WR Blue Mica)
|From '''Subaru 360 Race''' one-make race.
|[[File:GTPSP S360 blue - og res.png]]
|[[File:GTPSP 360 blue thumb.png]]
|-
|'''Toyota VITZ RS Turbo '02'''/'''Toyota Yaris RS Turbo (J) '02''' (Orange)
|From '''Vitz Cup''' one-make race.
|[[File:GTPSP yaris orange - og res.png]]
|[[File:GTPSP yaris orange thumb.png]]
|-
|'''Triumph Spitfire 1500 '74''' (Maroon)
|From '''Spitfire Cup''' one-make race.
|[[File:GTPSP spitfire marroon - og res.png]]
|[[File:GTPSP spitfire bicolor thumb.png]]
|-
|'''TVR Cerbera Speed 12 '00''' (Chameleon)
|From '''Blackpool Racers''' one-make race.
|[[File:GTPSP speed12 green - og res.png]]
|[[File:GTPSP speed12 green thumb.png]]
|-
|'''Mazda 787B Race Car '91''' (Black)
|Appears on a specific used car cycle.
|[[File:GTPSP 787b black - og res.png]]
|[[File:GTPSP 787b black thumb.png]]
|-
|'''Nissan R92CP Race Car '92''' (Black)
|Appears on a specific used car cycle. Thumbnail only.
|
|[[File:GTPSP r92cp black thumb.png]]
|-
|'''Nissan R390 GT1 Race Car '98''' (Black)
|Appears on a specific used car cycle. The thumbnail has the black livery, but the in-game livery is simply a darker version of the regular one.
|[[File:GTPSP r390 darker - og res.png]]
|[[File:GTPSP r390 black thumb.png]]
|-
|'''Polyphony Digital Formula Gran Turismo''' (Black)
|Awarded for 100% progress in GT4. No thumbnail.
|[[File:GTPSP FGT black - og res.png]]
|
|-
|'''Toyota GT-ONE Race Car (TS020) '99''' (Black)
|Appears on a specific used car cycle.
|[[File:GTPSP gt-one black - og res.png]]
|[[File:GTPSP gt-one black thumb.png]]
|-
|}