I'm 6.2, room is similar to civic, but head rooms is bit less but acceptable. In this category, Corolla has best rare leg and headroom.
With current options in market, definitely I'll go for Elantra again consider value for money..
XI Gen Civic is now close to launch, now it's depends on Altas if they launch it for 55 lac or even 60lac.. so next year we have different market dynamics and Elantra sales will be dependent on price difference and delivery time.