AddTorque but don't rotate around centre of mass?

Hello. I change the centre of mass of my car to -1.5 on start so that it's stable and doesn't tip over when you brake. But the problem with this is when I add torque to do flips it rotates around the centre of mass rather than the centre of the object which makes the flips look really weird.

Would it better to use transform.rotate or is it possible to rotate around a point other than the centre of mass with addTorque?

Thanks! :)