Maintenance should be roughly the same for both cars, but 1.8 has better mileage for sure.
Body is the same but it's all about the goodies. It's for you, and you only. Logon ko thori dikhani hai. If you have to give the car to the driver for intercity travelling, then gli is fine. But if you want to enjoy the drive along with these awesome goodies, then go for it.
1.8 Cvt has a driver air, which I think is a must in today's driving conditions.
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