oh yeah here are the features present in spark missing in alto, cuore and cultus.
1)power windows
2)power steering
3)modern engine (Daweeo s-tec meets current emission standards)
4)rear defrost
5)rear wiper
6)intermittent wipers
7)all doors indicators, and seat belt indicators
8)cd mp3 with remote built in
9)imported tires
10)mudflaps
11)power windows(front)
12)3x rear seat belts
and finally vast majority of components are 100% Korean made, degree of localization is very little, so build quality is high.
*only cultus vxl has some of the features