b4 i 4got to mention, my friend's relative lives in Karachi. He's a small business of used computer's parts like laptop betteries, LCDs blah blah. . .
He got a Probox in Silver color, but it's 1.4 D.4D Diesel engine, last month. It seems very powerful and he's lucky to get a nice car 
Don't know about the petrol version, some people say it 12kmpl, others say it's as bad as 9-10kmpl. . . No idea, but that guy in Karachi claims to cover more than 90kms in 500 fuel
(means its around 17-18kmpl)