1963 Aston Martin DB4 vs. 1991 Ford Sierra
To start off, 1991 Ford Sierra is newer by 28 year(s). Which means there will be less support and parts availability for 1963 Aston Martin DB4. In addition, the cost of maintenance, including insurance, on 1963 Aston Martin DB4 would be higher. At 3,670 cc (6 cylinders), 1963 Aston Martin DB4 is equipped with a bigger engine. In terms of performance, 1963 Aston Martin DB4 (310 HP @ 6000 RPM) has 235 more horse power than 1991 Ford Sierra. (75 HP @ 4500 RPM). In normal driving conditions, 1963 Aston Martin DB4 should accelerate faster than 1991 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 1963 Aston Martin DB4 weights approximately 80 kg more than 1991 Ford Sierra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1963 Aston Martin DB4 (377 Nm @ 5000 RPM) has 225 more torque (in Nm) than 1991 Ford Sierra. (152 Nm @ 2200 RPM). This means 1963 Aston Martin DB4 will have an easier job in driving up hills or pulling heavy equipment than 1991 Ford Sierra.
Compare all specifications:
| 1963 Aston Martin DB4 | 1991 Ford Sierra | |
| Make | Aston Martin | Ford |
| Model | DB4 | Sierra |
| Year Released | 1963 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 3670 cc | 1751 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 310 HP | 75 HP |
| Engine RPM | 6000 RPM | 4500 RPM |
| Torque | 377 Nm | 152 Nm |
| Torque RPM | 5000 RPM | 2200 RPM |
| Engine Bore Size | 92 mm | 82.5 mm |
| Engine Stroke Size | 92 mm | 82 mm |
| Fuel Type | Gasoline | Diesel |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1225 kg | 1145 kg |
| Vehicle Length | 4270 mm | 4430 mm |
| Vehicle Width | 1560 mm | 1700 mm |
| Vehicle Height | 1280 mm | 1370 mm |
| Wheelbase Size | 2370 mm | 2620 mm |
| Fuel Tank Capacity | 86 L | 60 L |
