If you are looking for city car or small hatchback to drive on traffic and narrow roads so Wagon R is full fill your requirements. I will write the detailed review so this is very useful for buyers.
Maruti Suzuki Wagon R is available on two different BS6 engine option one is 1.0 and 1.2 petrol engine. ARAI mileage 20kmpl to 22kmpl. The power ratio is following for both engines.
K10B Petrol Engine :
Max power - 67.05bhp@5500rpm
Max torque - 90Nm@35rpm
No. of cylinders - 3
K12M Petrol Engine :
Max power - 81.80bhp@6000rpm
Max torque - 113Nm@4200
No. of cylinders - 4
Pros :
Easy to drive, good headroom space, decent boot space, steering mounted control, comfortable seats, reliable engine, appealing boxy design, smooth and reliable engine with good power ratio, amt gear box option and small car to park every space.
Cons :
Build quality is not good also very cheap plastic use for interior, not adjustable headrest and body roll in the car.
My opinion : Your requirement for city driving car with lowest maintenance so you can buy. Overall value for money package provided by Maruti Suzuk.