Nice looking cars, no doubt, but they aren't going to happen. At least not the way they appear in the photos. Those cars are all based on the Zeta platform and that thread was started in June of 2006. Just recently GM announced they are killing the Zeta platform for all but the Camaro and G8 due to more stringent fuel ecomony laws. This means the big Buicks, the Chevy Impala and some Cadillacs are not going to be RWD cars. Bob Lutz himself said that GM can't meet the fuel economy targets unless they stick with FWD vehicles. Well, that was his spin anyway - could be the whole program is just too dang expensive.