Looking for 3D animator for Car modelling

Hello, I am looking for someone who can create 3D model of luxury cars and do animation with them. There will be cars total and need animation with each car, duratin will be 20 seconds each car. But before I assign you job, you need to represent demo of 5 seconds and must be submitted in 12 hours. If I approved the video, you will be assign complete task. 100% payment on 100% work completion. At end you must be submitted source files