1987 Ford Sierra vs. 1997 TVR Speed 12
To start off, 1997 TVR Speed 12 is newer by 10 year(s). Which means there will be less support and parts availability for 1987 Ford Sierra. In addition, the cost of maintenance, including insurance, on 1987 Ford Sierra would be higher. At 7,730 cc (12 cylinders), 1997 TVR Speed 12 is equipped with a bigger engine. In terms of performance, 1997 TVR Speed 12 (800 HP @ 8250 RPM) has 687 more horse power than 1987 Ford Sierra. (113 HP @ 5300 RPM) In normal driving conditions, 1997 TVR Speed 12 should accelerate faster than 1987 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 1987 Ford Sierra weights approximately 88 kg more than 1997 TVR Speed 12.
Let's talk about torque, 1997 TVR Speed 12 (881 Nm @ 5750 RPM) has 701 more torque (in Nm) than 1987 Ford Sierra. (180 Nm @ 3000 RPM). This means 1997 TVR Speed 12 will have an easier job in driving up hills or pulling heavy equipment than 1987 Ford Sierra.
Compare all specifications:
| 1987 Ford Sierra | 1997 TVR Speed 12 | |
| Make | Ford | TVR |
| Model | Sierra | Speed 12 |
| Year Released | 1987 | 1997 |
| Engine Position | Front | Front |
| Engine Size | 2294 cc | 7730 cc |
| Engine Cylinders | 4 cylinders | 12 cylinders |
| Engine Type | in-line | V |
| Horse Power | 113 HP | 800 HP |
| Engine RPM | 5300 RPM | 8250 RPM |
| Torque | 180 Nm | 881 Nm |
| Torque RPM | 3000 RPM | 5750 RPM |
| Engine Bore Size | 96 mm | 96 mm |
| Engine Stroke Size | 79.5 mm | 89 mm |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1090 kg | 1002 kg |
| Vehicle Length | 4400 mm | 4630 mm |
| Vehicle Width | 1680 mm | 2040 mm |
| Vehicle Height | 1370 mm | 1170 mm |
| Wheelbase Size | 2620 mm | 2650 mm |
