Band 7+: The chart below gives information on the amount of time taken to manufacture a vehicle by four US-based car producers between 1998 and 2002. Provide an overview of the information by identifying and describing the key details, and include comparisons where appropriate.

The given graph demonstrates how much time a vehicle required to produce by four American- based car brands from 1998 to 2002.

What is most striking when looking at the graph is that all car manufacturers witnessed reductions in time taken to produce a vehicle, while the opposite case was true for Ford. In addition, DC and Ford both fluctuated throughout the surveyed timeframe.

Looking first at the figures for nissan and gm, these two car producers both shared a relatively similar trend. In 1998, the former stood out as being a car manufacturer with the most time to make a vehicle, at about 37 hours, lagging behind the latter, spending 32 hours on producing a vehicle. Thereby, vehicle production time of Nissan significantly diminished to around 24 hours in 2000, before reaching its bottom at roughly 21 hours. Similarly, that of GM gradually fell to under 25 hours at the end of the period.

Moving onto the remaining data, DC hovered between around 29 and 34 hours per vehicle throughout the studied period. In addition, ford displayed a gradual increase by 3 hours in the first 4 years before a slight drop to under 25 hours.