Nana Akomea, the communications director of the New Patriotic Party (NPP), bought a state vehicle for 800 cedis in 2008.
This was revealed after supporters of the National Democratic Congress (NDC) circulated a list of 70 NPP appointees who bought state vehicles in 2008.
Akomea, who was minister for employment and social welfare at the time, defended the purchase of Facebook, saying that at the time, GHC800 was equivalent to $800.
He also said the car was an old car which he had used for nine years.
"This official car offered me was a nine-year-old (S reg) Skoda Octavia, which l was given as official car in 2001, and which l used for 9 years. That GHC800 in August 2008 was equivalent to eight hundred dollars ($800)," he wrote.
YEN reported earlier that the attorney-general, Gloria Akuffo, also bought two state cars for GHC2,200.
The furore over state cars follows an announcement by the Akufo-Addo administration to the effect that 200 vehicles at the presidency are missing.
The government has since launched an aggressive search for the vehicles.
On Tuesday, officials at the Flagstaff House seized a Toyota Camry V6 vehicle belonging to a private Ghanaian man, claiming it was a state vehicle.
The car was later released to the man after Flagstaff House checks showed the car was not state-owned.