Drove back to MI from WV today.
Saw 3 more:
1. Gray SRT6 Coupe on 23 in Columbus (near the Olentangy section), around 1 pm.
2. Red Limited Roadster going South on 23 about an hour North of Columbus, around 2 - 3 pm.
3. A red Limited Coupe on a car hauler going South on 23.

Any takers for #'s 1 and 2?