Yes, there are two types of third party
You've got the one that comes with registration, which is Third Party, which basically means if you smash into someones car, and they get injured and its your fault, it means that the insurance company will cover the cost of the operation, but not the car
The other is Third Party Property, its really just an add-on to the above, so if u wreck there car it'll cover for that as well, and the fire and theft means they'll cover you if your car catchs on fire(if your bad enough to let that happen), or gets stolen it will also cover you to the market value
So no matter what i drive, even if its a turbocharged and supercharged W16 Monster, will not effect the cost of the CTP? if so thats really good news