QUOTE(benson92 @ Aug 16 2017, 02:43 PM)
how to decide between standard, executive or premium
want the reverse camera on premium but not the navigation

I think it is better to decide on what accessories you want to get on the car.
Like my case, I chose Premium due to:
- Additional air bag
- Keyless entry system and Push Start-Stop
- Reverse camera
My minimum requirement was Executive since I really want the multimedia control on the steering wheel but after some thought why not just top up 5k to get premium version.
Of course some people may opt Standard and add their desired accessories but I am a lazy person haha
I never use the Navigation from day 1 since I prefer to use Waze.
To add on, after getting the Premium version , I do appreciate the lane switching feature (only available in Premium variant if I remember correctly) as well.