Due out this November, it has a 3.5 litre 190kw V6 engine with fuel at a low 9.9 litres, it's both powerful and frugal. With Toyota's bulletproof reliablity you can't go wrong.
And for those wanting a little more power the TRD 240kw supercharged Aurion will blow your mind.
http://www.aurionv6.com.au/toyota/aV6/index.jsp
http://en.wikipedia.org/wiki/Toyota_Aurion