Frodo-
Tripod is definitely required for the long lens. Either that or I need to drink less coffee. No IS on any of my lenses and I regret not getting that on the 80-200 f/2.8. I was 100+ feet back down the road with the tripod as low as it would go, laying on my side in the on-coming lane hoping not to get run over.
Stats on the long shot, 1/200s f/5.6 at 560mm iso100 (my camera doesn't recognize the stacked multipliers so it reports 400mm). The extremely short depth of field surprised me. I focused on the "porsche" on the windscreen and the back of the car was slightly blurred. The wide angle was 1/500s f/5.0 at 12.0mm iso100.
The full set from the trip can be viewed
here.