Capri
From Halopedia, the Halo wiki
On the Bungie website in a review for the Public Hog near the bottom a vehicle is mentioned called a Capri
Extract from the reviews section of Car and Pilot Magazine, December 22 2551
AMG Transport Dynamics 2553 Hog: First Review, Written by Kyle Soutar
Dynamically, the Hog is even more pleasing this year, and the aesthetic enhancements only add to its odd mixture of luxury and utility, though this is an update, not a revolution. Drivers expecting he kind of overhaul AMG demonstrated with last year's sublime relaunch of the Capri, will be disappointed, but for weekend warriors seeking a hipper way to bounce through the countryside, the '53 Hog is the only way to travel.
