The 1964 Cadillac DeVille weighed a maximum 4,600 pounds. The 6200 Series Cadillac weighed 4,575. Cadillac's 1964 Eldorado weighed 4,605 pounds and its Fleetwood Sixty Special weighed 4,680 pounds. The 1964 Fleetwood Seventy-Five weighed 5,300 pounds.
Cadillac has always been a luxury brand, so it's no wonder that Caddies of the 1960s had what we could consider in the 21st century to be extra-long wheelbases. The 1964 DeVille, the Series 6200, the Eldorado and the Fleetwood Sixty Special all had 129.5-inch wheelbases. The Fleetwood Seventy-Five, however, had a wheelbase of 149.75 inches.
All Cadillacs produced in 1964 with the exceptions of the Eldorado and the Fleetwood Seventy-Five had 8-by-15-inch tires. The exceptions wore 8.2-by-15-inch tires. All Cadillacs produced in 1964 were fitted with 340-horsepower engines.