Japan vs Japan — 1990 vs 1991
| Eunos Cosmo 20B Type S | 787B | |
|---|---|---|
| Horsepower | 300 hp | 700 hp |
| Torque | 300 lb-ft | 448 lb-ft |
| Engine Size | 1,962 cc | 2,616 cc |
| 0-60 mph | 5.0 sec | — |
| Top Speed | 158 mph | 225 mph |
| ¼ Mile | 13.5 sec | — |
| Weight | 3,616 lbs | 1,830 lbs |
| Wheelbase | 2,750 mm | 2,610 mm |
| Length | 4,815 mm | 4,782 mm |
| Units Produced | 8,875 | 3 |
| Value (Excellent) | $80,000 | $35,000,000 |
| Collectibility | 8/10 | 10/10 |
| Rarity | 8/10 | 10/10 |
Numbers favor the 1991 Mazda 787B with more power, higher top speed, lighter weight. The 1990 Mazda Eunos Cosmo 20B Type S offers better value, and has its own devoted following. For those who let their heart decide, either car delivers a rewarding ownership experience.
Mazda has long offered a diverse lineup, and comparing the 1990 Mazda Eunos Cosmo 20B Type S with the 1991 Mazda 787B highlights the breadth of the marque's engineering philosophy. The 1991 Mazda 787B holds a clear advantage in raw power with 700 hp compared to 300 hp, a 400-horsepower difference that shapes the driving experience. Under the hood, the contrast is notable: the Mazda Eunos Cosmo uses a Triple-Rotor Wankel (20B-REW) displacing 1,962 cc, while the Mazda 787B relies on a Quad-Rotor Wankel (R26B) with 2,616 cc. The 1991 Mazda 787B claims a higher top speed at 225 mph compared to 158 mph. The Mazda 787B carries a weight advantage, tipping the scales 1786 lbs lighter. Rarity plays a significant role here — with only 3 units built, the 1991 Mazda 787B is considerably scarcer than the Mazda Eunos Cosmo's 8,875 examples. On the collector market, the 1991 Mazda 787B commands a significant premium over the 1990 Mazda Eunos Cosmo 20B Type S, reflecting differences in prestige and rarity. From a collectibility standpoint, the 1991 Mazda 787B rates higher among enthusiasts and auction houses.