City 2001 is pretty fuel efficient IMHO. Around a 120-140km per CNG refil with AC, local. Around 11-12km per liter of petrol, local, with AC.
It has better brakes, better handling, trunk, more leg room, better comfort, better build quality, power steering and windows and as far as the maintenance is concerned, it boils down to the fact that you'll be replacing stuff twice as frequently in a Suzuki than in a Honda.
The only issue with a 2001 City is that its a 10 years old car, and in 600k, its next to impossible to find a City 2001 which is a keeper. Keepers go beyond 7 lakh, atleast in Lahore.