Accroding to the goodcarbadcar’s analysis, the car sales of  U.S  market in May 1st 2020 loss around 20% than the same season of last year. Look the data table, Hyundai sales was decresing around 38% than last yearin the same month. Mazda sales was decresing around 44% than last year in the same month. Data anlaysis can distinct show us the differ brand and numbers of auto car in U.S market and let us know about what brand of cylinder head should us to fucus on and development.

Reference :

2020,  ‘2020 US auto sales by brand analysis’, GOODCARBADCAR,available at: <https://www.goodcarbadcar.net/2020-us-vehicle-sales-figures-by-brand/>