From 1949 onwards the style gimmick of tailfins incorporating rear lights became apparent with Cadillac Fleetwood 1955. Would-be novelties of no practical even disandvatageous nature like gas filler cap under the rear light or exhaust outlets through the side ends of the rear bumper shall lead in coming years to absurdities.

Improvements in deep drawing techniques allowed the manufacture of bumbers of so odd shapes that fatalities with even small accidents become reality.

Big deplacement ,high compression ratio, fourbarrel carburettors enable high engine performance and put conventional suspension systems under pressure.

The Cadillac Fleetwood Sedan of 1955 weight 2200 Kg. Its engine of 5424 cm3 delivers 250 Hp at 4600 Rpm. Top speed is 170 km/h.