This can be accomplished in the Racer Campaign, if you strictly do single player only and pass every event first time with a "Gold" rating, you will roughly be around level 15 or so and unlock HYPER events. You will more than likely still require around 100,000-250,000 bounty to unlock the Bugatti Super Sport. I completed the last event of the racer side called "Seacrest Tour" about 4 times to get the last little bit of bounty I needed to unlock the car. Upon doing so, select an event that will allow you to use said car and coordinate with whoever you are trying to beat that you stopped at the finish line for as long as possible, to allow an ample amount of time for all skill levels at the game, to beat your time. After the individual beats your time, return to the SELECT EVENT screen, and you will hear "AUTOLOG ALERT" meaning someone has bested your time. Now just re-enter the event and beat their posted time. I recommend making a LFG or finding someone within the TA community to add who is also looking for this. Feel free to add me as well, I stopped at the finish line for most of the events to make it easier for the other person to win. This is my first guide, and I hope this helped someone attain the achievement. Please let me know how I did, positive/negative feedback is welcome! Cheers!