Should you upgrade from the base variant to the higher trims of the Celerio?

The Celerio is available across different trim variants that come with a feature and amenities of varying kind. The point of this question is how does the value proposition presented in the higher trims differ when compared to the base model? It looks into which of these features are actually useful in the day to day driving and which are, perhaps, luxuries. The topic is frequently discussed in terms of the cost effectiveness of factory fitted options versus aftermarket add ons. It also talks about how different trim levels could affect resale value on the car. Owners and would be buyers like to know if the extra features in higher trims really add much, or are they just cosmetic upgrades. It also looks at how the top end Celerio stacks up for features and price against base models of cars in the segment above.