Inventory shortages, rising prices contribute to high demand as consumers maintain and upgrade their current cars.
Softer than expected October sales points to potential that full-year could possibly be somewhere between 14.9-15.1M units.
This decline in loyalty is due in part to the major declines in dealer inventory from the global microchip shortage.
The microchip shortage along with other supply-chain issues have led to many vehicles not being available.
Last year, nearly 30% of U.S. new car sales were completed online.
The August sales level was 15.2 million at a seasonally-adjusted annual rate.
In total, 15 car manufacturers sold 3,240,028 car units in Europe between January and April this year.
Subaru ranks highest overall; Lexus ranks highest among luxury brands in the inaugural J.D. Power Automotive Brand Loyalty Study.