This has been flagged as missable since it is possible to complete the career and fail to achieve 5 Sponsor Objectives BUT highly unlikelyAt the beginning of each new season of the Career in WSR you are given the option to pick some Objectives from various sponsors to try to beat, you are given 3 slots at first and are given more as you progress
Make sure to pick the easiest objectives that you think you can beat (such as reach a certain speed, drift certain feet, etc) as to make this trophy easy to unlock.
If you forget which objectives you have picked you can press
whilst in your garage.
Completing 5 objectives is easy but be sure to pick 15 more easy ones to also work towards
The Sellout achievement in GRID 2 worth 79 pointsComplete 20 career sponsor objectives.