Originally Posted by Levi
Or just lose even more weight and put even stickier tires (245/40/17).
Loosing even more weight is not a reasonable thing to ask from a cost/practicality perspective unless you don't want a daily commute - I certainly do!
With more low to mid-range torque you will inevitably need slightly more rubber. Mind you, the S2000 also has the wider rear tires advantage f:215/45R17 r: 245/40R17
(as you suggest).