Well here is the (late) news: Charlie Cox, Warren Brown and Steve Pizzati are the three presenters of the upcoming Aussie Top Gear.
No 'usual suspects' there which might actually make it worth watching.
Check the link below for more !
http://topgear.sbs.com.au/
P.S. a well informed source tells me that it will be produced in Melbourne, with the test track being a well known multi-disciplined motor racing facility, just a little way's out of town to the north/west.