Fitted this:
http://www.sector111.com/track/interior/re-enforcer.cfm
a few weeks ago. I haven’t really given the car too much use since but thought I’d report back that I can’t notice much difference!
Feeling the flex in the floor I’m sure it must add some additional strength and I haven’t been on track as I’m awaiting a map.
I suspect the earlier cars would benefit from the ‘Stan Reinforcement’ (search Lotus Talk) but when I went to do mine armed with lots of washers and bolts it appears Lotus have done the fix on mine (April 2010 car)
However, these little jobbies are available through your friendly Seriously Lotus emporium, thanks Dave.