The the Jensen Interceptor used in Fast & Furious 6 was built with a 83 cubic inch (6.3 liters) or 440 cubic inch (7.2 liters) V8 engine. According to Dennis McCarthy, the 1971 model used in the film is a "left-hand model". It was bought from California on account of a lack of useful Interceptor models in England (wherein the the drivers seat would've been situated on the right hand) that were "rusted through".
The interceptor was given a matte gray paint job and outfitted with ""massive side pipes dumping out just forward of the rear wheels". The Interceptor and it the duplicate cars made for the film did not use an engine from a Chrysler model. The on-screen Interceptor used GM "LS3" V8 crate engines bought from a GM Performance Parts catalog. The engine used was similar to the "6.2-liter engine" that is considered a default standard in the Chevrolet Camaro SS, with a rating of 430 horsepower as shipped. The Interceptor's netpower goes up to 105 horsepower compared to the the Interceptor's original Chrysler 383 hp.
On three of the Jensen Interceptors used in the film was outfitted with functional Magnaflow side exhausts. McCarthy chose not to use them for the fourth Interceptor used in the film because of concerns that Michelle Rodriguez could burn her legs on them. Behind the interceptor's LS3 is a GM Turbo 400 three-speed automatic transmission that feeds back to the Ford 9-inch solid axle rear end that was mounted on the Interceptor's leaf spring rear suspension. McCarthy's crew widened the rear wheelwells to accommodate oversized 265/50R17 rear tires. In addition, Four-wheel disc brakes from a 2010 Ford Mustang GT were adapted to the car.