I think I might have found a contender. VW Passat CC. 220kW direct injected V6, AWD, auto clutch manual box. Has just about eveything the Monaro has and has 4 doors. 0-100kM/h mid 5sec, mid 14's over the 1/4 mile. Avergaes greater than 30MPG. Looks like I can but one less than 12 months old and less than 10,000kM for under $55k. Same driveline in a normal Passat is about $45k for the same thing. Like this:

http://www.carsales.com.au/all-cars/...C3859&__N=1216 1246 1247 1252 1282 4294962746 4294962490&trecs=73&__Ntx=mode matchallpartial&seot=1&__Nne=15&__Dx=mode matchany