I believe it's cooper
Most agencies that sell Cooper tires will have American prospector.
They are made in China, by American-Omni.
The cast of American Car Prospector - 2013 includes: John Hames as Himself - Host
Made in China by American-Omni.
Gladiator tires are made by Shangai or Jiangus Tire in China and imported by American Pacific Industries of California.
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American Car Prospector - 2013 On the Prowl 1-8 was released on: USA: 13 September 2013
Cooper tires makes them
American Car Prospector - 2013 Duelling Porsches 8-5 was released on: USA: 18 October 2013
American Car Prospector - 2013 Muscle on My Mind 8-7 was released on: USA: 1 November 2013
American Car Prospector - 2013 Residential Roundup 8-2 was released on: USA: 20 September 2013
American Car Prospector - 2013 Prospecting Imports 8-4 was released on: USA: 4 October 2013