A scaled-up version of the original, and then split and modified to allow easier printing, and for being able to join them back together. You can use as three split ramps, individual jumps or all joined together.
I recommend printing with larger nozzle (0.6mm), 25% infill and 0.34mm layer height, oriented like the screen shot from Prusa Slicer for less supports needed.
I printed in PETG to allow some outdoor use and for less brittle prints.
The author remixed this model.
Scaled up for 1:24 scale monster trucks.
Split into 6 parts, with walls and pins added to allow holding them together, or to create different setups (e.g. 3 long ramps, or 6 individual ramps).