I am thinking of buying a Commodore SS-V Redline sportwagon to use to tow my race car (total weight of race car and trailer is 2000 kg). Would it be suitable for this task, or would I be better to get a 4x4 SUV?
The SS-V Redline sportwagon is rated to tow 2100 kg (braked), so it would be very close to its maximum limit. While it should handle the mass I would be looking to something with a higher towing rating for what you want to do. That could be a 4WD SUV or a one-tonne ute.