The Elise rear spats were originally introduced on the Elise 111S.
Quite a lot of people liked the small but very distinct styling cue and started installing these on standard Elise S1 rear clamshells.
Unfortunately, Lotus made these strips extremely expensive which made most people walk away from the idea.
We have had these spats re-created in high end pre-preg Carbon Fibre. The shape is exactly the same as the original parts, but they look even better!