Yes, it looks like there is a Dodge Challenger SRT Demon on sale in Australia. It has just 22km on the clock. According to the advertisement the car is an MY2018 version and wears the build plate ...

With a 6.4-litre HEMI V8 lurking under the bonnet producing an anabolic 344kW, the 2013 Jeep Grand Cherokee SRT8 is about as close as you can get to a brand new road-legal monster truck.