Yeah it is, the front looks like an aston, the back looks like a ferrari f430...
but why would valve do this? css has the max settings and textures look much better even the simple ones like this screen.... my settings are maxed out on l4d but it doesn't look nowhere near as good as css
Previously CS was optimised through the roof by the modding community, meaning they could run the textures without loss of performance... probably by cutting away the crap you cant see, but i have nfi.
No idea if valve have continued his trend though. As much as i enjoy L4D, it does seem kinda rushed.