Germany vs Japan — 1983 vs 1975
| M6 E24 | Cosmo AP Limited | |
|---|---|---|
| Horsepower | 256 hp | 135 hp |
| Torque | 251 lb-ft | 134 lb-ft |
| Engine Size | 3,453 cc | 1,308 cc |
| 0-60 mph | 6.4 sec | 9.0 sec |
| Top Speed | 158 mph | 121 mph |
| ¼ Mile | 14.5 sec | 16.5 sec |
| Weight | 3,329 lbs | 2,469 lbs |
| Wheelbase | 2,626 mm | 2,510 mm |
| Length | 4,755 mm | 4,545 mm |
| Units Produced | 5,855 | — |
| Original MSRP | $56,000 | — |
| Value (Excellent) | $100,000 | $50,000 |
| Collectibility | 8/10 | 7/10 |
| Rarity | 7/10 | 8/10 |
The 1983 BMW M6 E24 holds an edge across most measurable criteria, offering more power, quicker acceleration, higher top speed. That said, the 1975 Mazda Cosmo AP Limited brings lighter weight, better value and remains a compelling choice for enthusiasts who value Mazda heritage. The right pick depends on whether you prioritize specifications or the intangible qualities that make a car truly special.
Putting the 1983 BMW M6 E24 against the 1975 Mazda Cosmo AP Limited is a comparison that enthusiasts have debated for decades. Each car reflects distinct design philosophies shaped by different automotive cultures — Germany versus Japan. The 1983 BMW M6 E24 holds a clear advantage in raw power with 256 hp compared to 135 hp, a 121-horsepower difference that shapes the driving experience. Under the hood, the contrast is notable: the BMW M6 uses a Inline-6 DOHC 24V displacing 3,453 cc, while the Mazda Cosmo AP relies on a Twin-rotor Wankel (13B) with 1,308 cc. In the sprint to 60 mph, the 1983 BMW M6 E24 edges ahead at 6.4 seconds versus 9.0 seconds. The Mazda Cosmo AP carries a weight advantage, tipping the scales 860 lbs lighter. On the collector market, the 1983 BMW M6 E24 commands a significant premium over the 1975 Mazda Cosmo AP Limited, reflecting differences in prestige and rarity.