Yes, there is, although I haven't tried it after Patch 1.05 since I didn't need any more money. This is how you do it:

1) Start an invite-only session and get in the car and drive to the Customs.
2) Upgrade your Adder/Bugatti and park it near the Customs. Also, change your Spawn Location to 'Last Location' in Options in the 'Online Tab.'
3) Go into one of your singleplayer characters and as soon as it comes up, press start and load a new game.
4) After it says "Lundendorff, Ten years ago" press start and go into an invite-only session again.
5) Now, you should've spawned in your Adder. Again, park near the Customs and steal a random car.
6) Drive the random car into the Customs and press A/X on 'Sell' until it says 'Are you sure you want to sell this vehicle?'
7) Press start and go to the store, and exit the store after it loads.
8) You should spawn in your Adder and then drive into the Customs.
9) It should automatically go to the sell part and as soon as you sell it, quickly press start, go to online and select Swap Character.
10) Select your character and repeat everything from Step 5.

Note: If you time out at any time during the glitch, call Mors Mutual Insurance and reclaim your car.

anybody please!!!!!!!!!!!!!!??????? it would be great if so

itsPriide wrote Yes, there is, although I haven't tried it after Patch 1.05 since I didn't need any more money. This is how you do it:

1) Start an invite-only session and get in the car and drive to the Customs.
2) Upgrade your Adder/Bugatti and park it near the Customs. Also, change your Spawn Location to 'Last Location' in Options in the 'Online Tab.'
3) Go into one of your singleplayer characters and as soon as it comes up, press start and load a new game.
4) After it says "Lundendorff, Ten years ago" press start and go into an invite-only session again.
5) Now, you should've spawned in your Adder. Again, park near the Customs and steal a random car.
6) Drive the random car into the Customs and press A/X on 'Sell' until it says 'Are you sure you want to sell this vehicle?'
7) Press start and go to the store, and exit the store after it loads.
8) You should spawn in your Adder and then drive into the Customs.
9) It should automatically go to the sell part and as soon as you sell it, quickly press start, go to online and select Swap Character.
10) Select your character and repeat everything from Step 5.

Note: If you time out at any time during the glitch, call Mors Mutual Insurance and reclaim your car.

it didnt work it spawned me back in the car i stole