I am sceptical about using an IFV chassis with a big gun as a tank replacement. Apart from common spare parts if you already use the IFV version and the ability to use some more bridges I don't see many advantages.
These advantages are paid for by having a vehicle which already is at the limit of it's upgrade potential and offers less protection. The price shouldn't be much of a difference and the same applies to operating costs.
And as soon as the enemy introduces T-72s and halfway modern ATGMs you have a problem. And it's not as if this stuff is not cheap and easy to get all around the world...
These advantages are paid for by having a vehicle which already is at the limit of it's upgrade potential and offers less protection. The price shouldn't be much of a difference and the same applies to operating costs.
And as soon as the enemy introduces T-72s and halfway modern ATGMs you have a problem. And it's not as if this stuff is not cheap and easy to get all around the world...