compared to what it looked like
we can see a lot of improvements like the bumpers, fenders, wheel wells, and elimination of the side reflectors, installation of the hood scoop
Interior upgrades to Jaguar's busy-looking dashboard topped with a padded cap and peppered with a galaxy of buttons, knobs, and switches. Foose's build adopts a cleaner, simpler design with gauges arranged in a cluster behind the steering wheel, and a chrome strip that runs across the entire dashboard.
Exterior modifications include extended rocker panels, new hood scoop, revised rear-end, new lower front fascia, new windshield design, revised headlights and taillights, new grille, trimmed doors and resectioned bumpers.
The spoke wheels are not spoked. Those are one piece rims. it of course does not have an old Jag engine, no one in California installs old Jag engines, it has to be a new Chevy LS engine to get approved. Maybe for smog reasons, maybe for speed of install and long term reliability. Maybe just to make parts replacement in the future a sure thing.
Maybe its the 575hp vs a Jaguar 270hp engine.
https://www.motorauthority.com/news/1125910_chip-foose-attempts-to-make-the-world-s-most-beautiful-car-prettier has a little to say, but not much