Grand National Roadster Show celebrates 100 years of the legendary George Barris with a few of his insane custom builds!

The remaining few are highly collectible and probably the coolest cop cars ever made ... including providing then-President George W. Bush with a photo opportunity in 2006 (see above).

This simple, no-frills car was all he needed to get around town and write his next masterpiece. Imagine George cruising down ... a picture of understated cool that perfectly complemented his ...