I know these are two totally different games but i need to choose one of them..

Grid or Dragonball Z burst Limit?

i enjoy beat-em-ups as much as i like racing games.

i just want to know what other people would buy, because i do not want a game which people would not buy or which will be a better game in a sense of content.

which would do better in terms of sales and how long it will last in its life cycle, until a new one comes out.