West Germany vs Germany — 1956 vs 1977
| 507 Roadster | E21 323i Sedan | |
|---|---|---|
| Horsepower | 150 hp | 143 hp |
| Torque | 172 lb-ft | 149 lb-ft |
| Engine Size | 3,168 cc | 2,315 cc |
| 0-60 mph | 9.0 sec | 9.3 sec |
| Top Speed | 137 mph | 121 mph |
| ¼ Mile | 16.2 sec | 17.0 sec |
| Weight | 2,932 lbs | 2,469 lbs |
| Wheelbase | 2,480 mm | 2,563 mm |
| Length | 4,380 mm | 4,355 mm |
| Units Produced | 252 | 69,591 |
| Original MSRP | $9,000 | $11,945 |
| Value (Excellent) | $3,000,000 | $35,000 |
| Collectibility | 10/10 | 7/10 |
| Rarity | 10/10 | 6/10 |
The 1956 BMW 507 Roadster holds an edge across most measurable criteria, offering quicker acceleration, higher top speed, greater rarity. That said, the 1977 BMW E21 323i Sedan brings lighter weight, better value and remains a compelling choice for enthusiasts who value BMW heritage. The right pick depends on whether you prioritize specifications or the intangible qualities that make a car truly special.
Within the BMW stable, the 1956 BMW 507 Roadster and 1977 BMW E21 323i Sedan represent different approaches to performance and purpose. Both carry the BMW badge, yet each carves out its own distinct identity. On paper, the two are remarkably close in power output, with the 1956 BMW 507 Roadster producing 150 hp and the 1977 BMW E21 323i Sedan delivering 143 hp. Under the hood, the contrast is notable: the BMW 507 uses a V8 OHV displacing 3,168 cc, while the BMW E21 323i relies on a Inline-6 SOHC with 2,315 cc. In the sprint to 60 mph, the 1956 BMW 507 Roadster edges ahead at 9.0 seconds versus 9.3 seconds. The BMW E21 323i carries a weight advantage, tipping the scales 463 lbs lighter. Rarity plays a significant role here — with only 252 units built, the 1956 BMW 507 Roadster is considerably scarcer than the BMW E21 323i's 69,591 examples. On the collector market, the 1956 BMW 507 Roadster commands a significant premium over the 1977 BMW E21 323i Sedan, reflecting differences in prestige and rarity. From a collectibility standpoint, the 1956 BMW 507 Roadster rates higher among enthusiasts and auction houses.