Manufacturer	2021	2022
GM (Est.)	2,691,493	2,654,568
Ford	2,334,290	2,265,590
Toyota	2,211,533	2,205,762
Fiat Chrysler	1,887,430	2,038,684
Honda	1,492,112	1,449,713
Nissan	1,455,238	1,345,157
Subaru	584,614	615,594
Hyundai	621,961	612,225
Kia	546,629	542,245
VW	309,395	322,017
Mercedes (includes Sprinter)	332,990	318,012
BMW	271,432	276,657
Mazda	262,577	274,455
Audi	199,534	200,558
Mitsubishi	95,185	109,088
Tesla (Est.)	40,320	106,050
Volvo	71,828	89,437
Land Rover	66,759	81,526
Porsche	51,507	53,116
MINI	42,494	40,887
Jaguar	36,180	27,021
Others	18,901	17,251
smart	2,905	1,154

Calculate the total number of cars from 2021 and 2022.

Which year has the higher number of cars and what is the difference (cars numbers) between 2021 and 2022?