On March 10 at 2:30 pm Traffic Service officers stopped a southbound Pontiac Grand Prix for speeding on Highway 1 in Cache Creek.
The car was travelling at 78 kilometres per hour in a 50 km/h zone.
RCMP said the driver exhibited suspicious behaviour and driving habits.
The 18-year-old Williams Lake man was given a ticket for speeding, but the officer also ordered the vehicle searched.
Officers found $50,000 in cash hidden in the trunk, along with three cell phones.
Police said neither the driver nor his passenger, a 19-year-old Williams Lake man, could give a consistent reason for the large amount of cash.
The money was seized and is under investigation as proceeds of crime.