The Texas Department of Public Safety took more than $846,000 in cash, along with some drugs, off the streets on October 14.
At 11:30 p.m., a trooper stopped a 2010 Buick Enclave traveling west on I-40 near Conway for a traffic violation.
Authorities soon discovered large plastic-wrapped bundles of cash inside two aftermarket compartments built into the rear floor.
DPS Special Agents were contacted and assisted with the investigation.
The driver and passenger, both from, New Mexico, were arrested and charged with money laundering and possession of a controlled substance.
The cash and drugs were being transported from Louisville, Kentucky to Albuquerque, New Mexico.