Well let's see, there's the tires on the little Hot Wheels cars, so those Mattel guys probably make more tires than anyone! Then the stone masons that make cars for the Flintstone car are probably in the top five, even though those tires last a LONG time. Someone is making tires for the next generation of moon car Lunar Rover that I read about, so maybe that's the Moon Tire Company?
Seriously, our friends at Rubber and Plastic News have informed us that the top tire makers, as judged by tire sales figures are as follows: Bridgestone, Michelin, Goodyear, Continental, Pirelli, Sumitomo.
Congrats to Bridgestone, and we're happy to also let you know that both NMS autocross cars are riding on Bridgestone's Potenza RE71-R tires.
This article from Rubber and Plastic News goes into more depth on tire sales, how the market is performing, and compares tire sales to previous years. Rubber and Plastic News