Okay so I found this glitch on gtaforums before it was deleted. It was described pretty poorly so here's my better version of it:
We're gonna be selling Franklin's buffalo from SP (price worth: $133k)
Preparation You'll only have to do this the first time you use the glitch.
1. Go into singleplayer as Franklin.
2. Get inside his buffalo (the car that is always at his house next to his green bike)
3. Drive to a remote location and park it on a big parking lot.
I use the parking lot near the los santos customs all the way up north in the map, so that no other players can bother me.
Here's the exact location I use:
4. Quicksave the game (by going in your cellphone and selecting the cloud icon)
5. Now load that quicksave to make sure the quicksave loads you back into your car on the same location (if it doesn't you'll have to re-park a bit further and redo the steps)
If the quicksave brings you to the same location and you're in the car, then you're all done with the preparation.
Now we're done with the preparation and ready for the glitch itself.
Glitch You'll have to start here every time you want to redo the glitch
1. Start an invite only session (you can only do this by going to singleplayer first then selecting online, play gta online, invite only session)
2. Drive to the same spot where you saved the quicksave in the preparation above.
3. Now position yourself close to the spot where you saved the car in SP (but not exactly the same spot, make sure you're at least 4 car lengths away)
4. Location saving time: This step is essential to save your location: Press start go to online -> creator.
Once the creator loads just back out of it and select "return to gta online".
5. Once you're back into gta online go to pause and go to the playstation store.
Immediately after the game asks "are you sure you wanna..." and you confirm by pressing x, Press the PS button, go a few menus to the right, to Account Management, go one up and sign out (triangle, x) AS SOON AS POSSIBLE. Then press the PS button again to exit the menu
Note: you can prepare this step by already having the PS menu on the account management menu (so just go to the PS menu before going to the store)
In this case you won't have to go a few menus to the right and one up when you need to sign out.
6. The game will now (display a store error/connection error and) forward you to SP (click x if the game asks you to)
7. Once you're in SP, load up the quicksave.
8. Once you're in the quicksave, sitting in your car on the parking lot: Press the PS button and sign in again to the PS network
9. Now press the D-pad and select your online character. As soon as the game asks "are you sure you wanna.. " and you have pressed x; sign out asap like before, and press the PS button to hide the menu again.
10. The game will now prompt the PSN login screen, simply login.
11. Once the game now loads you'll be in a public lobby, on the parking lot, with the singleplayer car sitting on the parking lot.
You can now sell Franklin's car for $133 000.
Note that you can only sell a car every 45 minutes in online.
I've been using this method for the past few days now, goodluck!
We're gonna be selling Franklin's buffalo from SP (price worth: $133k)
Preparation You'll only have to do this the first time you use the glitch.
1. Go into singleplayer as Franklin.
2. Get inside his buffalo (the car that is always at his house next to his green bike)
3. Drive to a remote location and park it on a big parking lot.
I use the parking lot near the los santos customs all the way up north in the map, so that no other players can bother me.
Here's the exact location I use:
4. Quicksave the game (by going in your cellphone and selecting the cloud icon)
5. Now load that quicksave to make sure the quicksave loads you back into your car on the same location (if it doesn't you'll have to re-park a bit further and redo the steps)
If the quicksave brings you to the same location and you're in the car, then you're all done with the preparation.
Now we're done with the preparation and ready for the glitch itself.
Glitch You'll have to start here every time you want to redo the glitch
1. Start an invite only session (you can only do this by going to singleplayer first then selecting online, play gta online, invite only session)
2. Drive to the same spot where you saved the quicksave in the preparation above.
3. Now position yourself close to the spot where you saved the car in SP (but not exactly the same spot, make sure you're at least 4 car lengths away)
4. Location saving time: This step is essential to save your location: Press start go to online -> creator.
Once the creator loads just back out of it and select "return to gta online".
5. Once you're back into gta online go to pause and go to the playstation store.
Immediately after the game asks "are you sure you wanna..." and you confirm by pressing x, Press the PS button, go a few menus to the right, to Account Management, go one up and sign out (triangle, x) AS SOON AS POSSIBLE. Then press the PS button again to exit the menu
Note: you can prepare this step by already having the PS menu on the account management menu (so just go to the PS menu before going to the store)
In this case you won't have to go a few menus to the right and one up when you need to sign out.
6. The game will now (display a store error/connection error and) forward you to SP (click x if the game asks you to)
7. Once you're in SP, load up the quicksave.
8. Once you're in the quicksave, sitting in your car on the parking lot: Press the PS button and sign in again to the PS network
9. Now press the D-pad and select your online character. As soon as the game asks "are you sure you wanna.. " and you have pressed x; sign out asap like before, and press the PS button to hide the menu again.
10. The game will now prompt the PSN login screen, simply login.
11. Once the game now loads you'll be in a public lobby, on the parking lot, with the singleplayer car sitting on the parking lot.
You can now sell Franklin's car for $133 000.
Note that you can only sell a car every 45 minutes in online.
I've been using this method for the past few days now, goodluck!
