NEED LOGO for manufacturer of customized and specialized semi-trailers for the heavy haul industry

This is what LATEST CHANGE MARCH 14, 2015 name of Company in small letters, NO caps, soft and rounded fonts Tag line; Engineered to Last! was looking for in their logo design

Need a classy yet conservative logo design for REBRANDING of a 42 year old manufacturer of Highway/ commercial semi-trailers (as in truck -trailers). The original 42 year old company was called Thru-Way Trailers exactly as shown. The new company is called thruway specialized. exactly as shown. we want to retain over tag line (IF THE DESIGNER CONSIDERS ACCEPTABLE THESE DAYS) of the old company "Engineered to last!" as shown with the exclamation directly under the new company name. We own the trade mark so TM in raised letter should be shown --- not too bold or ostentatious.
see our website: www.thruwaytrailers.com which shows the type of specialized trailers we make.
our traditional colours are Red for company name and black for the tag line.
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