I have 11 manufacturers at level 10 or higher. The leader is Ford at a high level 14 due to all of the Mustang Muscle plus I did some work at Fujimi in a Ka. Toyota, Abarth, and Renault are very close behind in the 14's. I am not really sure why Toyota is that high, I do like the 2000GT but did not think I had driven it that much, there are a number of them needed for the event list so maybe that is why. Renault is all Clio V6 and the Abarth 131 is one of my early favorite cars. I have 131's in E, F, and D and my wife made up a sweet Alitalia paint job for it so that is even better.