Since it started selling cars in 2013, Carvana has disrupted the U.S. used vehicle market with no-haggle pricing and an online buying process that cuts out the often-dreaded salesman.

Carvana concerns have forced a state investigation, and new information Thursday suggests the used car megastore is without a license here in Michigan.

Shares of upstart used-vehicle chain Carvana have tumbled further due to the company's struggles with falling prices and waning demand for its products.

A Novi car dealership that had its license suspended last week by the Michigan Secretary of State fired back at the allegations, calling them “baseless and reckless.”

An Oakland County “vehicle vending machine” dealership has had its license suspended after employees destroyed documents, odometer records weren’t maintained, and investigators found more than 100 customer title delays and probation violations, according to state officials.