Since i wasted a lot of time searching for the fonts that were used on RRT4 cars I figured out I will post font names just in case someone else might look for them and it might save him some time.

RTS.
//All the fonts that were used on a RTS skin. I just dont remember which font was used for making particular sticker so I just list them all.
/Nasalization
/Dodger
/Blockshox
/BN Year 2000
/911 proscha
/pepsi
//

Now, fonts i remember I used to make particular stickers.
Format 'Sticker : font name'

RTS
Yoshimitse (Side front) : Zrnic
Assoluto (Side front) : Zrnic
R.T.Solvalou (Side front): Handel gothic D semi bold
Chupacabras 84 (cant miss it ;D): Xoireqe thin
Xevious (Side rear) 'V.alpha' : Adobe gothic std bold

PRC.
Number 76 (Side) : Century gothic bold italic
Namco (multiple places) : namco regular
Pac racing Club (Hood): xoireqe thin
20th aniversary (Hood) : BlockShox
Pac-man (Side) : Pac-font

MMM.
Number 83 (Side) : arial bold
mewkies (Hood and on each side placed low): blockshox hooge (a bit modified by me)
HURRY UP (Side front) : Handel
MP on MappyBadge (Sides and hood) : Birch std

DRT.
Dig Dug Driving (Side rear) : Blippo Ultra-bold
POMP (Side front) : Blippo Light SF
Dig (hood) : Blippo Ultra-bold
FIGER : Terminator real NFI 'G'Modified
Number 14 (side) : sans bold
PUKA (Side front) : handel Gothic
[F tm] (Side low) : handel Gothic

Some stickers like sidenumbers dont look like they were made with particular font because they were stretched/skewed/rotated/resized but if its said it was made with particular font most likely it is, unless I screwed something in my notes.