Duesenberg J-510

1933 Duesenberg Model SJ Sweep Panel Phaeton by LaGrande

Offered by Auctions America | Auburn, Indiana | September 2, 2017

Photo – Auctions America

When one of the most powerful cars on the market isn’t quick enough for you, what do you do? Well you buy the supercharged version, of course! The Model SJ Duesenberg was seriously powerful. Its 6.9-liter Lycoming straight-eight, when supercharged, makes 320 horsepower. That’s what entry-level luxury sports sedans make today.

Top speed on these beasts is said to be about 140 mph. But if you’re not brave enough to take a car with 1920s-era brakes to 140 mph, your best bet is to buy one that has a custom body (as they all did) that looks like it’s already moving quickly. And in this case, that is a LaGrande “Sweep Panel” Phaeton. Only 11 of this body style were produced and only three of those were supercharged. Of those three, only this one is not a Dual Cowl Phaeton, as the rear passenger compartment does not have a second cowl, just a folding windshield.

This car was sold new in New York but it spent many years in Mexico. It was restored by an American owner in 1974 and has been fastidiously maintained since. This is one of only 36 original SJs, making it extremely valuable, as the price reflects: $2,500,000-$3,000,000. Click here for more info and here for more from this sale.

Update: Sold $2,300,000.