#5 - I like the design structure, however,can you make the tire design look a bit more realistic.
#7 - I like the way that you separate the Premier and Tire. Not interested in the PT design, can you try another design?
#6 The color selection is good - the blue and gray make it look clean and classy. Maybe trying to separate the Premier Tire, because it almost looks like one word (even if the both words are different colors).