The lavish "James Bond" lifestyle of a drug smuggling gang first began to unravel in 2009 when police stopped and searched an uninsured BMW at Cullompton Services on the M5 in Devon.
Inside the vehicle, driven by Christopher Leader, officers found 5kg (11lb) of cocaine, worth about £250,000.
The drugs were wrapped up in a parcel made to look "like a present".
The discovery was the start of Operation Stagshaw - in which detectives from Devon and Cornwall Police began work to track down the gang.
Detectives found pictures of the gang's ringleader Timothy Eastgate, 31 and his deputy Paul Flisher, 38, "living a lavish lifestyle".
"They drove around in Ferraris, Lamborghinis, they had a private box at the O2 Arena in London," said senior investigating...