Some automobile manufacturers have recently developed a leaf spring that is constructed of a composite material similar to plastic in order to provide a softer type of rear suspension.
Flight time from New York to Reykjavik is 5 hours 30 minutes. Non-Stop flight duration from JFK to KEF is 5 hours 30 minutes (Operated by JetBlue Airways).
(Roughly, from New York to California it takes between 3 and a half hours to approximately 4 and a half hours. On the way back if you were to return to New York from California you'd be looking at a 5 hour flight!).