Cars are stupid expensive in Argentina, like 3 times or more as expensive as in the US. Importing a corvette, LOL. That would be an absolute nightmare in red tape and huge taxes, not to mention would be almost un-driveable in the city due to potholes and speed humps at the intersections. Also you would probably be so worried about someone stealing your car you wouldn't be able to enjoy anything.
Maybe a long time ago you could whatever car you wanted in Argentina but not now. I think its very difficult to even get a modest new BMW there now.
"They demanded Argentina take immediate steps to reverse its policies or risk further action at the WTO. Argentina has also been pushing importers to match their purchases abroad with exports, leading to quirky deals such as one where car maker BMW exports rice." from here.
Also wanted to comment on the bank account thing in OP. It is a huge problem for foreigners to open a bank account there. If you do manage to open one you wont be doing international bank wires to or from it. Certainly will be better to get a foreign bank account or offshore account before you go and get your money wired to that and use that debit card from the ATMs.