Haven't signed up lately, but I must have requested info a while ago. Subject line is "Info on the all-new Sonata, and a special reward offer".
You're invited to experience this refined, sophisticated sedan firsthand and receive a $25 Reward Choice™ Certificate as our thanks.
"This offer is non-transferable. Verification of recipient's name and address will be performed before redemption is fulfilled. Any test-drive offer obtained from any coupon website, or emailed or forwarded by the original recipient, will not be honored. See test-drive certificate for specific redemption requirements. All matters of program eligibility and qualification will be conclusively resolved by Hyundai Motor America."