Tristan, to use classic British understatement, Yes, quite. ( a really bad idea) Australians have been cutting the roofs off sedans for awhile, as for some insane reason in a climate that screams for convertables the local makers never marketed them. Tend to be a bunch of mid 60's Chevs and Canadian Pontiacs 4dr Hdtps that eventually break in half . Very sad. Keep the lid on and buy a ragtop. A nice 67 or 68 will still be cheaper than a new microwave on wheels. Glen