With new cars sales hitting an annualized rate of 17.4 million last month, the best since 2006, there’s not much room for improvement. Boomers are driving less, half of all drivers are now women, income growth is flat, Millenials are not big car enthusiasts, suburban life is not as attractive as it was, population growth is slowing and due to increased trade-ins from expiring leases, used car prices are falling.