How do you get the 2j rtace car in Gran Turismo 5?

To unlock the 2J race car in Gran Turismo 5, you need to complete the "Gran Turismo All-Stars" event, which is part of the game's Special Events. After finishing this event, you will receive the 2J as a reward. Additionally, you can also purchase it from the Used Car Dealership, although its availability may vary.