G owner here

In addition to those listed above.

G has:
speed sensing door locks
on board trip meter
auto climate
better seat material (not sure about this)
extra passenger airbag (Extra safety for your loved ones)
colors not available in E variant
chrome mirror cover (can be upgraded outside)

The best value for money is the E variant. If you can afford to get the G for a better general driving experience. do it. otherwise, E is more than good enough.