Sure, John.
In the "supercar" category, like Ferrari, there are also the Maserati, and the Lamborghini- all Italian. Then there are the British supercars, like the Aston-Martin, the Bentley and the Rolls Royce. There is also the Maybach, which is German, made by Mercedes Benz.
All of these are in current- although limited- production. There are dozens more great cars that are no longer produced, but still can be seen at car shows, like the Pebble Beach Concours show.
Hope that helps get you started!