The Land Rover Defender is finding itself on the wrong side of the law of supply and demand.

A massive increase in Defender thefts has followed JLR’s January termination of the all-wheel-drive workhorse’s 67-year production run.

Rural insurer NFU Mutual tells WardsAuto more than 500 Defenders were stolen across the U.K. last year and its theft-claims costs rose to £1.8 million ($2.6 million).

The figure has soared 75% since the end of production in January and NFU Mutual is urging Defender owners to be security-savvy as gangs of thieves head into the countryside looking for the vehicles or their parts.

The Land Rover Defender, initially called the Land Rover Ninety and Land Rover One Ten, was launched in 1948. More than 2 million were built at the JLR plant in Solihull, 110 miles (175 km) northwest of London.

“The Defender is no longer in production, which has prompted a greater demand, making them a bigger target for thieves,” Clive Harris, Mutual Agricultural Vehicle Specialist-NFU, says in a statement.

“Owners should ensure they have adequate security measures in place and consider fitting an aftermarket-approved immobilizer and a tracking device if possible,” he says. “When not in use, Defenders should be parked in a garage or a secure area which is well-lit if possible.”

“Thieves will target component parts so consider marking them using a forensic marking solution or system,” NFU says. “Have the vehicle identification number etched on windows. Consider fitting a hidden battery-isolation or a fuel cutoff switch. Take photographs of unusual features, modifications, damage or repairs which could aid identification if stolen.”