Factory Five Racing is developing a mid-engine, RWD roadster that will use a WRX donor for it's running gear. The car is expected to be about 1800 pounds and have a removable top. The kit price is targeted to be $9,900, plus a donor WRX. See the link for more info: FFR WRX Roadster
Factory Five Racing is the number one seller of Cobra kits, as well as a few other awesome kits.