The SRV1 (Safety Research Vehicle 1) was the first of five prototypes prepared in 1974. It was based on the 2-door Marina.

External alterations included a deformable front-end and impact-absorbing bumpers, while the interior featured font and rear head restraints and a padded barrier built into the centre of the rear seat.

This car was also referred to as the “ESV Marina Phase 1″, ESV standing for “Experimental Safety Vehicle”.