Q&A: what is the best infant car seat in the world? how does it work? special features etc...?

Question by daniellebotto: what is the best infant car seat in the world? how does it work? special features etc...?
like how does it work? what are the features? and how is it made? i am inventing a car seat right now that has a retractable five point harness and lots more so i need a lot of info on different models and how they work and especially how they are made if you have any info on infant carseats r just carseats for children in general please give me all you've got!!! thanks so

Starting Baby on Solids