BMW 507

vs

BMW E21 323i

Germany vs Germany — 1957 vs 1977

BMW 507 (1957)
BMW E21 323i (1977)
Specifications
507E21 323i Sedan
Horsepower150 hp143 hp
Torque173 lb-ft149 lb-ft
Engine Size3,168 cc2,315 cc
0-60 mph11.0 sec9.3 sec
Top Speed124 mph121 mph
¼ Mile17.2 sec17.0 sec
Weight2,932 lbs2,469 lbs
Wheelbase2,480 mm2,563 mm
Length4,385 mm4,355 mm
Units Produced25269,591
Original MSRP$9,000$11,945
Value (Excellent)$3,000,000$35,000
Collectibility10/107/10
Rarity10/106/10
The Verdict

This matchup is remarkably close. The 1957 BMW 507 offers higher top speed, greater rarity, stronger collectibility, while the 1977 BMW E21 323i Sedan counters with quicker acceleration, lighter weight, better value. Neither holds a decisive advantage, making this a true enthusiast's dilemma. Your choice ultimately depends on which driving philosophy resonates more with you.

Overview

Within the BMW stable, the 1957 BMW 507 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 1957 BMW 507 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 16V 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 1977 BMW E21 323i Sedan edges ahead at 9.3 seconds versus 11.0 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 1957 BMW 507 is considerably scarcer than the BMW E21 323i's 69,591 examples. On the collector market, the 1957 BMW 507 commands a significant premium over the 1977 BMW E21 323i Sedan, reflecting differences in prestige and rarity. From a collectibility standpoint, the 1957 BMW 507 rates higher among enthusiasts and auction houses.