I saw what I'm pretty sure was an A4 as I was crossing the Sunshine Skywaty Bridge over Tampa Bay yesterday. I've never seen one in the air that I can recall. Maybe it was a Sky Fox.
One usually shows up at the EAA Oshkosh each year. A pic of last year's A4... Image Unavailable, Please Login
That's her alright. Had the tanks under the wings. Did a lazy turn around the Sunshine Skyway Bridge and headed back east.