I agree with steve, it's way too high.. but if you still want it, then make sure u get it checked first by a registered mechanic and at a bargain price. good luck
23L/100Km?????? that's so high matey.. i am averaging 8.8L/100Km on the motorway and 12.3L/100Km on the side streets with my ES300 ('02 model) better get the service man mate..