1966 AC Cobra vs. 1985 Ford Sierra
To start off, 1985 Ford Sierra is newer by 19 year(s). Which means there will be less support and parts availability for 1966 AC Cobra. In addition, the cost of maintenance, including insurance, on 1966 AC Cobra would be higher. At 6,997 cc (8 cylinders), 1966 AC Cobra is equipped with a bigger engine. In terms of performance, 1966 AC Cobra (410 HP @ 6000 RPM) has 262 more horse power than 1985 Ford Sierra. (148 HP @ 5700 RPM). In normal driving conditions, 1966 AC Cobra should accelerate faster than 1985 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 1985 Ford Sierra weights approximately 58 kg more than 1966 AC Cobra.
Let's talk about torque, 1966 AC Cobra (651 Nm @ 3700 RPM) has 431 more torque (in Nm) than 1985 Ford Sierra. (220 Nm @ 3800 RPM). This means 1966 AC Cobra will have an easier job in driving up hills or pulling heavy equipment than 1985 Ford Sierra.
Compare all specifications:
| 1966 AC Cobra | 1985 Ford Sierra | |
| Make | AC | Ford |
| Model | Cobra | Sierra |
| Year Released | 1966 | 1985 |
| Engine Position | Front | Front |
| Engine Size | 6997 cc | 2790 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Horse Power | 410 HP | 148 HP |
| Engine RPM | 6000 RPM | 5700 RPM |
| Torque | 651 Nm | 220 Nm |
| Torque RPM | 3700 RPM | 3800 RPM |
| Engine Bore Size | 107.7 mm | 93 mm |
| Engine Stroke Size | 96 mm | 68.5 mm |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Weight | 1147 kg | 1205 kg |
| Vehicle Length | 3970 mm | 4400 mm |
| Vehicle Width | 1730 mm | 1680 mm |
| Vehicle Height | 1250 mm | 1370 mm |
| Wheelbase Size | 2290 mm | 2620 mm |
