Select to expand quotefjdoug said..
PPL is not restricted to piston engine single.
You can fly a Boeing 747 with a PPL if you had a 747 endorsement, only for private/non commercial flights though.
You couldn't be paid to fly it and you would not be able to charge your passengers though they could contribute to cost sharing.
See if CASA agrees with you (it's piston single , "endorsement" licensing is post graduate of PPL)
www.casa.gov.au/standard-page/ppl-sample-examination-questions
www.legislation.gov.au/Details/F2016C00540/Html/Volume_3
