Me personally, I sold cars for about 4.5 years...mostly Lincoln Mercurys (as an Internet Sales Manager), but also dabbled in Ford and Honda dealerships.
I have been for 2 years, 18 months with Mazda (until they closed our store), and with Ford/Lincoln for 6 months.
'Burg checkin' in. Was with Ford for 2 years, now with Nissan.
Of course, I also have 9 years with Mazda, 7 with GM, and about 4 months with Infiniti.