Eldorado Cadillac History 1958

Eldorado Cadillac Models & History 1958

TheBrougham’s astronomical price was unchanged, but the timing of such a price proved to be ill-advised in this deep recession year. Sales production was a mere 304 units.

The major change for the Eldorado Brougham was seen inside the car. The interior upper door panels were now finished in leather instead of the metal finish used in 1957. New wheel covers also appeared. Forty-four trim combinations were available, along with fifteen special monotone paint colors. This was the last year for domestic production of the handbuilt Brougham at Cadillac’s Detroit factory, as future manufacturing of the special bodies was to be done by Pininfarina of Turin, Italy.


  • Serial numbers now used a three symbol prefix
  • The first pair of numerical symbols “58” designated model year
  • A one-letter alphabetical code (included as part of model number in charts below) indicated model and series
  • Each prefix was followed by the consecutive unit number which started at 000001 and up
  • The serial number was located at the front of the lefthand frame side bar
  • Motor serial numbers again matched and were found on the center lefthand side of the block above the oil pan


Model Number Body Style Model Seat Price Weight Production Total
58P-70 7059X

4-door Hardtop Sedan

6 $13,074 2416 kg 304

NOTES: The symbol “X” after Body Style Number indicates power windows and seat standard.


1958 Cadillac Eldorado Series 70

Type V-8 Overhead valves
Block Cast iron block
Displacement 5.972 Liters
Bore and stroke 101.6mm x 92.1mm
Compression ratio 10.25:1
Brake horsepower 310 hp @ 4800 rpm
Power 231 kW @ 4800 rpm
Bearings Five main bearings
Valve Lifters Hydraulic valve lifters
Carburetor Carter AFB four-barrel Model 2862S


Model Wheelbase Overall Length Front Tread Rear Tread Tires
Series 70 Eldorado 3200mm 5494mm 1549mm 1549mm 8.40 x 15 high-speed thin whitewall


Radio with antenna and rear speaker $164
Automatic heating system $129
Posture seat adjuster $81
Six-Way seat adjuster $103
Power window regulators $108
E-Z-Eye Glass $46
Fog lamps $41
Automatic headlamp beam control $48
Five (5) sabre spoke wheels $350
White sidewall 8.20 x 15 four-ply tires $55
Gold finish grille on Eldorado no charge
Four-door door guards $7
Two-door door guards $4
Remote control trunk lock $43
License plate frame $8
Air conditioning $474
Air suspension $214
Electric door locks on coupes $35


Utility kit $15
Monogram $12
Blue Coral waxing $25
Undercoating $5
Lubrication agreement $34