2011 Chevrolet Volt Z-Spec
To be specific, the perk is to drive a Chevrolet Volt for three days. Klout plans to have the top technology, entertainment, and social-media influencers in Chicago drive it.
Klout will choose 25 influencers in total, and each person will also receive a $50 gift card towards expenses.
Reading through the comments under Klout's post, it seems most users are pretty excited and some are very disappointed they don't live in Chicago. Seems like Klout has a perk that is worth winning in many users' minds.