After following the instructions for @Louis13 and @pikkoras it still doesn't work... I am confused, do I have to put the desktop.ini file anywhere aswell?

@Slonjarit so you should follow these steps properly :
1) put the folder named SP in the GTA 5 folder (where you installed the game)

2) in the dlc list, you put the line is : <Item>dlcpacks:\sp\</Item>
(lower or UPPER case is not an issue)

3)use OPENIV to drag the new dlc list to where it should be that you just finished editing

4)so now, you just play the game and spawn the car is : RSQ8M ,rmb: RSQ8M in game, and its done :)

@whoBIGS thank you brother this did indeed helped me, everything is working perfect now!! Sick car

@Louis13 did it still not working i even tried installing a new trainer and update my scripthook. still invalid model

Fix the modification issues I can't modify the car make version 1.1 where you fix all the issues btw nice car

Realy nice car, can we have the RSQ3 next ?

amazing car

Amazing work dude(s), I made a handling for it if you dont mind and uploaded on here!

@AleisterDH Mansory is a tuning company, the take cars like lamborghini, audi etc and then change a couple of things like the look of the car, the engine, increased horsepower, seats etc. They are similar to Shelby, Manhart etc

Possible to fix the ugly carbon textures? :) Otherwise great car!

@LMTLS Super 👍👍👍🌟🌟🌟🌟🌟

I love this car so much but I have an interior color problem. Instead of black, mine is some sort of light blue...
Can anyone help me? I can't even find where can I change the car's interior color.

@LMTLS How did you make the car work in-game? when i tried to modify rsmods q8 and put it in-game it wasnt spawning

@LMTLS
Very beautiful car. Thank you so much

Update plzzz!!

love all your cars,make more please :)

how many km does the car take?

Dieses Auto funktioniert nicht auf FiveM ohne Änderung (stream-Ordner und __resource.lua)

@Louis13
sorry but with this it still doesn work and what you mean with point 3? what i have to drag? The DLC Liste copy? tested everything but nothin work still "invail model" if i call it SP, RQS8M or something nothing works.

@tr1p87 bro, its been around 2yrs since this post lol. Anw, what i mean in the point 3 is you just need to copy that line to the DLC list , and then drag your new dlc list to old one by open iv. I recommend you to the the trainer call : ADD-ON SPAWNER, you can search in here and then it will make your life easier xD