View All num of num See all Photos Microsoft www.microsoft.com Engaged Employer Overview Reviews Salaries Interviews Jobs Photos Benefits 10k Reviews 33k Salaries 4.3k Interviews 5.2k Jobs Follow Add Interview Follow Add Interview Interview Question Summer Intern Interview(Student Candidate) Seattle, WA Microsoft How many new cars, on average, are bought in the US each year? Tags: See more , See less 8 Answer Add Tags Answer Interview Answer 1 Answer ▲ 1 ▼ Given a total pop of 300M, I guess 75% are 16 or older (225M). Of those, maybe 40% drive a car (90M). Now assume a new person buys a new car every five years, or 90M * 1/5 = 18M. That was my answer and the guy said I was quite close. Interview Candidate on Nov 28, 2012 Interviews > Summer Intern > Microsoft Add Answers or Comments To comment on this, Sign In or Sign Up.