The era of social media is fully upon us when even 100-plus-year-old carmakers are adopting outlets like Twitter and Facebook as part of their efforts to build brand reputation. Sometimes it's even interesting.

Take this tweet for @Ford, the official Ford Twitter account:

@Ford: In 1953, Ford produced its 40-millionth U.S.-built vehicle. We're still going strong! What is your all-time favorite Ford vehicle? #TWIF

If we had to pick one, right now it would probably be the 2011 Ford Mustang Shelby GT500, which we drove earlier this year at Virginia International Raceway and its environs. But others, like the Ford GT, Fairlane, 1967 Mustang fastback, and yes, even the Flex EcoBoost, are right up there on the list.

What's your favorite Ford of all time? In the spirit of the questions, respond to us on Twitter at @TheRealMA and be sure to include the #FavFord hashtag. We'll absorb all your top picks and distill them into a new story.