There's actually a lot of options for our suspension since this is really a R170 chassis.
Fully Adjustable Coilover Kits:
Ksport Coilover
KW Coilover
Matching Spring/Shock/Struts:
ST Suspension
H&R Suspension
Then of course you have shocks by, Koni, AGX and a lot of others (easy stuff to find). LOTS of spring choices (H&R, Eibach, etc etc). And H&R makes upgraded sway bars for our car. Then you can go to energy suspension for our suspension bushings, they have a kit for the R170 chassis that will work on our cars.
Then if you wanted to get really crazy and do tubular A-Arms and suspension pieces with HEIM links and get rid of the bushings all together (if you came from an Elise you shouldn't mind the squeeks, groans and rattles that these things would bring). Custom race shops can do this for you for a nominal fee (several thousand

).
The basics are already there for our car because it's based on the R170 underpinnings, but anything is possible with enough money.