No its not a Hill Climb. I doubt Minari would travel half way across the world for a Hill Climb
Its a race around the Australian State of Tasmania. It is run in stages like a real rally. Its a tarmac rally. Its run over 5 days where some of the states most pristine roads are closed off to the public while the cars do the circut.
"The total distance next year will be approximately 2000km, with about 450km in 44 competitive stages, the same number of stages as in 2003"
"Targa Tasmania is an exciting International Classic… a tarmac rally with competitive stages on closed roads for the best touring, sports and GT cars in the world. Its inaugural year was in April 1992 when Tasmania hosted this distinguished International motoring Classic.
The competition concept is drawn directly from the best features of the Mille Miglia, the Coupe des Alpes and the Tour de Corse. However, Targa Tasmania is not a slow-motion re-run. It is a genuine "red-blooded" motor sport competition. It is also a unique annual opportunity for the owners of sports cars and GTs to drive them the way they were designed to be driven, on some of the most exciting and challenging tarmac roads in the world.
Targa Tasmania caters for up to 300 select cars including many overseas competitors. Entries are selected from Applications to Compete, by a Vehicle Selection Committee.
There are four competitions within the event:
Targa Tasmania Shannons Historic
Targa Tasmania Shannons Touring Classic
Targa Tasmania Classic
Targa Tasmania Modern"
http://www.targa.org.au