The Cadillc CT6 is a wonderful piece of machinery, except for one flaw...

General Motors has a patented method for manufacturing the CT6, one that includes an industry exclusive way to weld aluminium with steel, not to mention the use of advanced materials sprinkled in. As a result, 25 states don't have a single collision repair shop approved to work on the CT6 in the event of a crash.

Only 150 shops nationwide possess the expertise to repair the CT6 per GM guidelines-- in fact, GM won't even allow uncertified shops to touch the big Caddy, withholding structural measurements and parts from the unapproved.

Certification does require bespoke equipment and special training from GM and I-CAR collision repair, but for shops that already wade in the higher end of the business certification is fairly straight forward.

General Motors wholesale channel associate Rachel Rodriguez told GM Repair Insights that "depending on the existing resources a shop brings to the table, qualifying for the network can require little more than an audit or a more significant investment in time and equipment/tools, with full certification usually taking 1-3 months."

With only 7,876 CT6s sold in 2016 some shops may feel certification is an unnecessary burden considering the car's niche--but with exclusivity comes bragging rights and GM is hoping more shops will warm to the idea of being the only place in town with the magic touch to put a crumpled CT6 back in business.