3d scan contour for new body

hi all i need help on the workflow to split this body / model onto this 3d scan ive uploaded to Shapr3d.

Essentially prototyping some cannards and body pieces fo my track car.

i cant figure out how to split the body so it follows the contours of the bumper , any suggestestions?

You need to redraw the portion you need in Shapr.

Use construction plane to slice the car in multiple parts.

Redraw on the construction plane and use the cross section of the stl as a guide.

When your drawing is done you can loft it.