TMR website.
The existing definition will continue to apply to cars manufactured before 1 January 2010. Under this definition a car is a high-powered vehicle if it has:
an engine with 8 or more cylinders
a turbocharged or supercharged engine that is not diesel powered
an engine with a power output of more than 210kW
a rotary engine with an engine capacity of more than 1146cc
an engine modification that must be approved under section 13 of the Transport Operations (Road Use Management—Vehicle Standards and Safety) Regulation 2010 (PDF, 831KB).
http://www.qld.gov.au/transport/licensing/driver-licensing/applying/provisional/restrictions/index.html
These cars are marketed as producing 206kw,hence legal.