WSJ colleague John D. Stoll files this dispatch on troubles at General Motors' Hummer brand.

General Motors's quest to sell its Hummer division may get a bit tougher after Tuesday.

A 2005 Hummer H2 at Towbin Hummer (via towbin-hummer.ebizautos.com) That is when Dan Towbin--whose dealerships grabbed national attention as the backdrop for an...