The 2001 Opel Speedster Turbo and 1982 Opel Manta 400 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 1982 Opel Manta 400 holds a clear advantage in raw power with 275 hp compared to 200 hp, a 75-horsepower difference that shapes the driving experience. Under the hood, the contrast is notable: the Opel Speedster uses a Inline-4 Turbocharged displacing 1,998 cc, while the Opel Manta relies on a Inline-4 DOHC 16V (CIH-based) with 2,420 cc. In the sprint to 60 mph, the 2001 Opel Speedster Turbo edges ahead at 4.9 seconds versus 6.2 seconds. The Opel Speedster carries a weight advantage, tipping the scales 408 lbs lighter. Rarity plays a significant role here — with only 245 units built, the 1982 Opel Manta 400 is considerably scarcer than the Opel Speedster's 7,500 examples. On the collector market, the 1982 Opel Manta 400 commands a significant premium over the 2001 Opel Speedster Turbo, reflecting differences in prestige and rarity. From a collectibility standpoint, the 1982 Opel Manta 400 rates higher among enthusiasts and auction houses.