Can anyone identify this vintage car?

Can anyone identify the black car in the background?
Thanks in advance.
http://www.blogsmithmedia.com/www.autoblog.com/media/2008/08/12_lambosatpebble.jpg

The car in the background is the Lamborghini Concept S and the car in the foreground is the Lamborghini P140 prototype that evolved into the Diablo. But if you look at this car, it's more closely related to the Cizeta-Moroder V16T.

Hello, The vintage BLACK car is:
1938 Buick Y-Job Concept Car, nice car !