Escaping the pursuit is not necessary for this trophyFirstly find a Jack Spot (There are many around the city) for example Mcclane - Kruger Avenue has a Jack Spot for the Mercedes-Benz SLS AMG, sit near the car and wait for a cop car (Blue triangle on your map) to appear and ram them to initiate a pursuit, then drive back to the Jack Spot and press
on the car to jump in and the trophy will be yours.
If you also jump through a billboard and then lose the cops you will also unlock
Here's a video