Sadly, my data are on the computer at work.
I did a fast Google search and found that for 987 phase 1:
I - 43 mph (7200 rpm)
II - 72 mph (7200 rpm)
III -100 mph (7200 rpm)
IV - 125 mph (7200 rpm)
V - 145 mph (7200 rpm)
VI - 171 mph (7150 rpm)
To me it's not a very useful gearsets.
Looks like my Laguna Secca example was bad
I hope you get the idea.
At my local track, my modified Lotus is 2 to 5. A Cayman is 2 in one turn, then 3 only.
Looks like Laguna Secca may be just big enough to use many cars.