West Germany vs West Germany — 1981 vs 1978
| Manta 400 Rally Homologation | Senator 3.0i 24V | |
|---|---|---|
| Horsepower | 144 hp | 204 hp |
| Torque | 155 lb-ft | 199 lb-ft |
| Engine Size | 2,420 cc | 2,969 cc |
| 0-60 mph | 8.5 sec | 7.5 sec |
| Top Speed | 129 mph | 149 mph |
| ¼ Mile | 16.0 sec | 15.8 sec |
| Weight | 2,337 lbs | 3,219 lbs |
| Wheelbase | 2,518 mm | 2,731 mm |
| Length | 4,470 mm | 4,758 mm |
| Units Produced | 245 | 151,000 |
| Value (Excellent) | $200,000 | $20,000 |
| Collectibility | 8/10 | 4/10 |
| Rarity | 9/10 | 6/10 |
Two outstanding machines, each with compelling strengths. The 1981 Opel Manta 400 Rally Homologation excels in lighter weight, greater rarity, stronger collectibility, while the 1978 Opel Senator 3.0i 24V stands out for more power, quicker acceleration, higher top speed. The best advice? Drive both if you can, then follow your instincts.
The 1981 Opel Manta 400 Rally Homologation and 1978 Opel Senator 3.0i 24V share a manufacturer in Opel, but that's where the similarities get interesting. These two models reveal the versatility and ambition of the Opel brand. The 1978 Opel Senator 3.0i 24V holds a clear advantage in raw power with 204 hp compared to 144 hp, a 60-horsepower difference that shapes the driving experience. Under the hood, the contrast is notable: the Opel Manta 400 uses a Inline-4 DOHC 16V displacing 2,420 cc, while the Opel Senator relies on a Inline-6 DOHC 24V with 2,969 cc. In the sprint to 60 mph, the 1978 Opel Senator 3.0i 24V edges ahead at 7.5 seconds versus 8.5 seconds. The Opel Manta 400 carries a weight advantage, tipping the scales 882 lbs lighter. Rarity plays a significant role here — with only 245 units built, the 1981 Opel Manta 400 Rally Homologation is considerably scarcer than the Opel Senator's 151,000 examples. On the collector market, the 1981 Opel Manta 400 Rally Homologation commands a significant premium over the 1978 Opel Senator 3.0i 24V, reflecting differences in prestige and rarity. From a collectibility standpoint, the 1981 Opel Manta 400 Rally Homologation rates higher among enthusiasts and auction houses.