Actor and former California governor Arnold Schwarzenegger reportedly took multiple carbon-emitting flights to Germany to monitor the "eco-friendly" modifications being made to his gas-guzzling $100,000 Pinzgauer car. 

Reports state that the actor used S-TEC, a low-displacement engine range, to modify his Pinzgauer vehicle to make it more environmentally friendly. Pinzgauers generally have a D24T 2.4-liter diesel engine - with older models using 20-30 miles per gallon of fuel. 

The move appears ironic as one return first-class flight from Los Angeles to Hamburg, uses 11.84 tonnes of carbon dioxide. Hamburg is the closest airport to Albersdorf, where S-TEC is based. The amount of emission released by the flights is more than double the standard amount of Carbon dioxide an average family car releases in a year, according to the Daily Mail.

A press release for S-Tec stated: "The reputation of S-TEC, a company of Magna, as an aftermarket expert has clearly spread all the way to Hollywood. As a case in point, Arnold Schwarzenegger, movie star and former governor of California, was received as a guest in the Offroad Competence Center in Albersdorf several times in recent months. His frequent visits were motivated by his recent acquisition of a Pinzgauer 6x6 718 K, which S-TEC then upgraded according to the exacting requests and taste of the Hollywood star."

The Terminator star was spotted driving the vehicle in Brentwood, California, on Sunday. It is not yet clear how the car was transported back from Germany to LA. The actor-turned-politician has a penchant for military vehicles and reportedly has a collection of Humvees, and Hummers. 

The news come to light shortly after his meeting with teenage climate activist Greta Thunberg. He had reportedly lent her his recently-modified Mercedes Benz G-Class wagon with an electric engine to travel around the United States. Schwarzenegger, just days before he was spotted in his Pinzgauer 718 K, went for a bike ride with Thunberg.