In the 50s, especially after they were discontinued ... the growing postwar middle class led directly to the birth of the hot rod movement as we know it today. Flathead-powered hot rods continued ...

The Top Gear America hosts are in search of performance and embrace hot rod culture to find it in a '94 Cadillac Fleetwood Brougham, a late-2000s MINI Cooper S and a 2011 Ford Crown Victoria ...

Finding a belly tank in the '40s and '50s was very, very easy ... and they're a major part of hot rod culture. So where does that strange-looking "bodywork" come from? The short answer?