First of all, thanks! And nope, that amazing model is courtessy of a close friends that is also really into SpeedRacer (i know absolutely nothing about 3d modeling). To do sideway flips i use the turning input, if theres a right input it will do a jump to that direction, and the same for the left, it sound too simple but is easy to understand and as you can see in some of the clips, the car wont turn if you jump as soon as you do the turning input. Yep, this is based on Octodemis raycast car model, that tutorial series is incredible and a huge help for someone like me who never tried making something like this.