Write script to control the vehicle in Unity 3D

I'm looking for unity 3D expert for long term. I'm willing to share profit for every product you done. This's the first job to challenge your skills. The job is make the script to control a vehicle. The car should be controlled by tilt as the below video: [login to view URL] - Just make some scripts. Any thing else just like dummy. I can send you car model or any model you need. - Car move forward automatically - Car move faster, break down by buttons - Car move left, right by title - Car should sloping follow move direction - Any moving should be smooth (may use lerp) Please refer my video. I'm so willing to donate x2 budget if you did as well. If you have any product, please send on your reply.