Germany vs West Germany — 1955 vs 1977
| 300 SL Gullwing | 300D W123 | |
|---|---|---|
| Horsepower | 215 hp | 88 hp |
| Torque | 203 lb-ft | 127 lb-ft |
| Engine Size | 2,996 cc | 2,998 cc |
| 0-60 mph | 8.8 sec | 17.0 sec |
| Top Speed | 161 mph | 96 mph |
| ¼ Mile | 16.3 sec | 20.5 sec |
| Weight | 2,855 lbs | 3,241 lbs |
| Wheelbase | 2,400 mm | 2,795 mm |
| Length | 4,520 mm | 4,725 mm |
| Units Produced | 1,400 | 2,697,000 |
| Original MSRP | $6,820 | $20,300 |
| Value (Excellent) | $3,000,000 | $35,000 |
| Collectibility | 10/10 | 6/10 |
| Rarity | 9/10 | 2/10 |
The 1955 Mercedes-Benz 300 SL Gullwing holds an edge across most measurable criteria, offering more power, quicker acceleration, higher top speed. That said, the 1977 Mercedes-Benz 300D W123 brings better value and remains a compelling choice for enthusiasts who value Mercedes-Benz heritage. The right pick depends on whether you prioritize specifications or the intangible qualities that make a car truly special.
The 1955 Mercedes-Benz 300 SL Gullwing and 1977 Mercedes-Benz 300D W123 share a manufacturer in Mercedes-Benz, but that's where the similarities get interesting. These two models reveal the versatility and ambition of the Mercedes-Benz brand. The 1955 Mercedes-Benz 300 SL Gullwing holds a clear advantage in raw power with 215 hp compared to 88 hp, a 127-horsepower difference that shapes the driving experience. Under the hood, the contrast is notable: the Mercedes-Benz 300 SL uses a Inline-6 SOHC displacing 2,996 cc, while the Mercedes-Benz 300D relies on a Inline-5 Diesel OHC with 2,998 cc. In the sprint to 60 mph, the 1955 Mercedes-Benz 300 SL Gullwing edges ahead at 8.8 seconds versus 17.0 seconds. The Mercedes-Benz 300 SL carries a weight advantage, tipping the scales 386 lbs lighter. Rarity plays a significant role here — with only 1,400 units built, the 1955 Mercedes-Benz 300 SL Gullwing is considerably scarcer than the Mercedes-Benz 300D's 2,697,000 examples. On the collector market, the 1955 Mercedes-Benz 300 SL Gullwing commands a significant premium over the 1977 Mercedes-Benz 300D W123, reflecting differences in prestige and rarity. From a collectibility standpoint, the 1955 Mercedes-Benz 300 SL Gullwing rates higher among enthusiasts and auction houses.