it seems DOME has removed any hints of the IRL wish from their site. intersetingly enough there is an Oval series in Japan (proposed maybe) and Dome had a chassis built for that.
http://www.dome.co.jp/e/museum/car_m/car_m33a.html
long sleek more CHampcar/F1 than an IRL car
the "watercart racer" is very cool, a sit down like a formula car, Jetski- that's cool/ even the bobsliegh is very innovative compared to what i have been seeing recently on SPeed Channel