USA vs France — 1929 vs 1919
| Model SJ Supercharged | H6B Boulogne Sport | |
|---|---|---|
| Horsepower | 320 hp | 135 hp |
| Torque | 490 lb-ft | — |
| Engine Size | 6,882 cc | 6,597 cc |
| 0-60 mph | 8.0 sec | — |
| Top Speed | 135 mph | 93 mph |
| Weight | 5,500 lbs | 3,968 lbs |
| Wheelbase | 3,658 mm | 3,720 mm |
| Length | 5,588 mm | — |
| Units Produced | 36 | 2,600 |
| Original MSRP | $13,000 | — |
| Value (Excellent) | $8,000,000 | $3,000,000 |
| Collectibility | 10/10 | 10/10 |
| Rarity | 10/10 | 9/10 |
Two outstanding machines, each with compelling strengths. The 1929 Duesenberg Model SJ Supercharged excels in more power, higher top speed, greater rarity, while the 1919 Hispano-Suiza H6B Boulogne Sport stands out for lighter weight, better value. The best advice? Drive both if you can, then follow your instincts.
Putting the 1929 Duesenberg Model SJ Supercharged against the 1919 Hispano-Suiza H6B Boulogne Sport is a comparison that enthusiasts have debated for decades. Each car reflects distinct design philosophies shaped by different automotive cultures — USA versus France. The 1929 Duesenberg Model SJ Supercharged holds a clear advantage in raw power with 320 hp compared to 135 hp, a 185-horsepower difference that shapes the driving experience. Under the hood, the contrast is notable: the Duesenberg Model SJ uses a Straight-8 Supercharged displacing 6,882 cc, while the Hispano-Suiza H6B relies on a Inline-6 SOHC with 6,597 cc. The 1929 Duesenberg Model SJ Supercharged claims a higher top speed at 135 mph compared to 93 mph. The Hispano-Suiza H6B carries a weight advantage, tipping the scales 1532 lbs lighter. Rarity plays a significant role here — with only 36 units built, the 1929 Duesenberg Model SJ Supercharged is considerably scarcer than the Hispano-Suiza H6B's 2,600 examples. On the collector market, the 1929 Duesenberg Model SJ Supercharged commands a significant premium over the 1919 Hispano-Suiza H6B Boulogne Sport, reflecting differences in prestige and rarity.