Germany vs Japan — 1970 vs 1971
| Manta GT/E | RX-3 Savanna GT | |
|---|---|---|
| Horsepower | 105 hp | 110 hp |
| Torque | 116 lb-ft | 101 lb-ft |
| Engine Size | 1,897 cc | 1,146 cc |
| 0-60 mph | 10.5 sec | 9.0 sec |
| Top Speed | 115 mph | 118 mph |
| ¼ Mile | 17.5 sec | 16.5 sec |
| Weight | 2,160 lbs | 2,061 lbs |
| Wheelbase | 2,420 mm | 2,310 mm |
| Length | 4,242 mm | 4,065 mm |
| Units Produced | 498,553 | 286,000 |
| Original MSRP | — | $3,200 |
| Value (Excellent) | $30,000 | $80,000 |
| Collectibility | 6/10 | 8/10 |
| Rarity | 6/10 | 7/10 |
The 1971 Mazda RX-3 Savanna GT emerges ahead in most objective measures, offering quicker acceleration, higher top speed, stronger collectibility. The 1970 Opel Manta GT/E counters with better value, but the numbers favor its rival. Still, both are remarkable machines, and the final choice often comes down to which driving experience speaks to you.
Putting the 1970 Opel Manta GT/E against the 1971 Mazda RX-3 Savanna GT is a comparison that enthusiasts have debated for decades. Each car reflects distinct design philosophies shaped by different automotive cultures — Germany versus Japan. On paper, the two are remarkably close in power output, with the 1970 Opel Manta GT/E producing 105 hp and the 1971 Mazda RX-3 Savanna GT delivering 110 hp. Under the hood, the contrast is notable: the Opel Manta uses a Inline-4 CIH displacing 1,897 cc, while the Mazda RX-3 relies on a Wankel Rotary Twin-Rotor with 1,146 cc. In the sprint to 60 mph, the 1971 Mazda RX-3 Savanna GT edges ahead at 9.0 seconds versus 10.5 seconds. On the collector market, the 1971 Mazda RX-3 Savanna GT commands a significant premium over the 1970 Opel Manta GT/E, reflecting differences in prestige and rarity. From a collectibility standpoint, the 1971 Mazda RX-3 Savanna GT rates higher among enthusiasts and auction houses.