A 2003 1.3 manual Echo at 194k km
It looks terrible but mechanically is pretty sound, and apart from replacing the usual consumables the engine has never had any other work on it.
Our petrol prices in Adelaide vary by up to 40 cents over a price cycle so I always fill up when I think it is at the lowest price point, and calculate the actual consumption from distance travelled and quantity put in to 2nd click on the pump.
Most driving is Adelaide urban and consumption is entirely dependant on traffic conditions and distance travelled. A short trip with cold engine is a killer for consumption but after 1.5km the revs settle, the cold coolant light goes out and then reasonable returns are possible.
Around town my calculated consumption on refill has varied from 4.8l/100 to 6.2L/100 but usually 5.5L/100.
My daughter borrowed the car yesterday for a 590km round trip and refilled with 36 litres, which is 6.1l/100, and she is a total lead foot and would have been at the speed limit the whole journey. I once did the same trip and averaged about 4.9L/100 but there was a catch as I had not been out of town for a year and the wheels were so unbalanced I was unable to exceed 80kph without fear of damaging the car and had to go by backroads to avoid the heavy traffic.
The trick to getting good consumption around town is to anticipate the traffic to avoid unnecessary braking. Slow acceleration does not save much petrol and just annoys other road users so I usually get into 2nd asap and rev to the urban speed limit and shortshift to 4th or 5th. I am more conservative if I am the only one on the road.
Love driving the car and looking forward to replacing the really awful tyres on it soon.