My Friend owns an RS 1.5L
Trust me its a treat to drive , those who say its NOT ECONOMICAL are WRONG - RS version is far more fuel efficient as compared to the auto variants - lesser issues with gear (depends upon the way u drive it )
Its a beast as 1.5L in a Compact car considering the weight ratio
I'd suggest u to go for it but it should be below 1300k what so ever
FYI - bigger engines are not always LESS FUEL EFFICIENT , jux remeber that BIGGER THE ENGINE , LESSER THE POWER its requires to pull the car (FWD)
Again it depends upon the way u treat ur car