In spaces where the traffic eased on I-95, we followed the speed limit of 70 mph. But it seemed we were crawling along, compared with other drivers who apparently thought this was the Indianapolis 500-mile race as they roared past us going at least 80 -90 mph. Many cars had darkened windows, as if they were exhibiting the stereotypical Miami Vice drug dealer or convicted felons escaping from the law. Conversely, Florida – as a well-known retirement haven -- also has its share of slower drivers, going 30 to 35 mph, well under the minimum speed limit.