2003 Alpina Roadster vs. 1987 Ford Sierra
To start off, 2003 Alpina Roadster is newer by 16 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 3,346 cc (6 cylinders), 2003 Alpina Roadster is equipped with a bigger engine. In terms of performance, 2003 Alpina Roadster (301 HP @ 6300 RPM) has 189 more horse power than 1987 Ford Sierra. (112 HP @ 5300 RPM). In normal driving conditions, 2003 Alpina Roadster should accelerate faster than 1987 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2003 Alpina Roadster weights approximately 491 kg more than 1987 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, 2003 Alpina Roadster (362 Nm @ 4800 RPM) has 182 more torque (in Nm) than 1987 Ford Sierra. (180 Nm @ 3000 RPM). This means 2003 Alpina Roadster will have an easier job in driving up hills or pulling heavy equipment than 1987 Ford Sierra.
Compare all specifications:
| 2003 Alpina Roadster | 1987 Ford Sierra | |
| Make | Alpina | Ford |
| Model | Roadster | Sierra |
| Year Released | 2003 | 1987 |
| Body Type | Convertible | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 3346 cc | 2292 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 301 HP | 112 HP |
| Engine RPM | 6300 RPM | 5300 RPM |
| Torque | 362 Nm | 180 Nm |
| Torque RPM | 4800 RPM | 3000 RPM |
| Engine Bore Size | 87 mm | 96 mm |
| Engine Stroke Size | 93.8 mm | 79.5 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Number of Seats | 2 seats | 5 seats |
| Vehicle Weight | 1626 kg | 1135 kg |
| Vehicle Length | 4100 mm | 4500 mm |
| Vehicle Width | 1790 mm | 1680 mm |
| Vehicle Height | 1310 mm | 1400 mm |
| Wheelbase Size | 2500 mm | 2620 mm |
