Glad You Kept Going? is obtained by doing 350 races in a session using a holiday car. It was only available during the 2012 Xmaxx Event.
60 Achievement Points
With only 19 achievers, it is the rarest event achievement to date. Because of NitroType's growing user base and a lack of extremely difficult event achievements, it is probably going to be the rarest event achievement forever.
At the time, its $2 million reward was double the highest cash reward for any other achievement.