The Ford Motor Company led the 2011 auto show with five worldwide debuts spearheaded by the C-Max series. GM unveiled four, and Chrysler had two. Well this year General Motors Co. will debut at lease four new models, including the 2013 Cadillac ATS this year at Cobo Hall. However the Chrysler Group LLC and the Ford Motor Company have yet to give details on whats to come. NAIAS spokesperson Joe Rohatynski said you can expected as many as 40 cars to make their debuts this year with North America included and that’s up from 32 in January 2011. Rohatynski went on to say as the attendance continues to increase, the more auto manufacturers plan to introduce more new cars, And the return of Nissan and Infiniti to this years show should help attendance as well with more activity and more excitement. Our media registrations have increased by about 15-20 percent, our early tickets for charity sales have increased by about 20 percent; so if we follow that trend … it stands to reason that we will bring in greater crowds than last year,”More than 770,000 people from 55 countries were in attendance last year. This years NAIAS will be open to the public Jan. 14-21. Adult Tickets $12; children and seniors $6; and groups of 30 or more $8 per person.