...about the same as 200 Ford Cortinas (each one 15kg per hour)
Those would be very thirsty Ford Cortinas!
15kg (@0.755kg/L - standard density for road petrol) is almost 20L/hour. You'd need to be going at 100mph returning just 23mpg to burn petrol at that rate!
At a more reasonable 70mph returning 30mpg, you'd be burning under 11L/hour, around 8kg/hour. So the A320 is burning fuel at a similar rate to 375 of those Cortinas being driven equally sensibly.
Today's diesel car returning 70mpg at 60mph burns under 4L/hour, or 3.25kg/hour, so 925 of them could be cruising along at 60mph whilst burning no more fuel than just the one A320 in Superpilot's example.
A pint of Doom for me please - regards to Rock!