Sales and related occupations are among the most important occupations in automobile dealers and account for 36 percent of industry employment. Sales workers’ success in selling vehicles and services determines the success of the dealer. Automotive retail salespersons usually are the first to greet customers and determine their interests through a series of questions.
Most automobile sales workers are paid on commission. Commission systems vary, but dealers often guarantee new salespersons a modest salary for the first few months until they learn how to sell vehicles. Many dealers also pay experienced, commissioned sales workers a modest weekly or monthly salary to compensate for the unstable nature of sales. With increasing customer service requirements, some dealers and manufacturers have adopted a sales force paid entirely by salary.
US Bureau of Labor Statistics- Occupational Outlook Handbook