TMG still developing Lexus LS Sports 650 [w/video] - Autoblog (blog)
Some concepts just roll and have a body hanging on rails (design concept), some have a power train but no interior other than a steering wheel and a seat (like the first NSX Concept with the black windows). He said this car is phase 3 so it very much is a development mule but it also moonlights as their Sport 650 concept to showcase what TMG can do. Source: www.autoblog.com
