M18 Hellcats of the 805th Tank Destroyer Battalion (which operated in Italy) were some of the most colourful, with a black panther crushing a tank with its jaws emblem. The naming practice was to start the vehicle’s name with the company letter. Thus the first vehicle of company B was named “Black Cat”. The M18 had very light armouring, but was the fastest armoured vehicle of WWII with a top speed of 45 mph. Thanks to this, it excelled at flank attacks and was the most effective US tank destroyer of WWII.