USA vs USA — 1966 vs 1968
| Toronado 455 | Delta 88 Royale Convertible | |
|---|---|---|
| Horsepower | 400 hp | 365 hp |
| Torque | 500 lb-ft | 480 lb-ft |
| Engine Size | 7,456 cc | 7,456 cc |
| 0-60 mph | 7.5 sec | 7.5 sec |
| Top Speed | 135 mph | 125 mph |
| ¼ Mile | 15.5 sec | 15.5 sec |
| Weight | 4,600 lbs | 4,200 lbs |
| Wheelbase | 3,048 mm | 3,099 mm |
| Length | 5,365 mm | 5,588 mm |
| Units Produced | 40,963 | 13,600 |
| Original MSRP | $4,617 | $3,708 |
| Value (Excellent) | $65,000 | $55,000 |
| Collectibility | 7/10 | 7/10 |
| Rarity | 5/10 | 6/10 |
Numbers favor the 1968 Oldsmobile Delta 88 Royale Convertible with quicker acceleration, lighter weight, greater rarity. The 1966 Oldsmobile Toronado 455 offers higher top speed, and has its own devoted following. For those who let their heart decide, either car delivers a rewarding ownership experience.
Oldsmobile has long offered a diverse lineup, and comparing the 1966 Oldsmobile Toronado 455 with the 1968 Oldsmobile Delta 88 Royale Convertible highlights the breadth of the marque's engineering philosophy. The 1966 Oldsmobile Toronado 455 holds a clear advantage in raw power with 400 hp compared to 365 hp, a 35-horsepower difference that shapes the driving experience. Under the hood, the contrast is notable: the Oldsmobile Toronado uses a V8 OHV (Oldsmobile 455 Rocket) displacing 7,456 cc, while the Oldsmobile Delta 88 relies on a V8 OHV (Rocket) with 7,456 cc. In the sprint to 60 mph, the 1968 Oldsmobile Delta 88 Royale Convertible edges ahead at 7.5 seconds versus 7.5 seconds. The Oldsmobile Delta 88 carries a weight advantage, tipping the scales 400 lbs lighter. Both trade at comparable values on the collector market, making the choice between them largely one of personal preference.