NSW has some pretty awesome roads, you just have to chance your luck.
There are some excellent driving roads near Sydney, such as the Bells Line between Richmond and Lithgow, Putty Road between Richmond and Cessnock, Old Pacific Highway between Hornsby and Gosford, Razorback near Picton and the Royal National Park Roads (McKell Ave, Lady Wakehurst Dr, Sir Bertram Stevens Dr and Rawson Rd).

Cops could be anywhere though, and they don't tolerate hooning.