2005 Alpina Roadster vs. 1990 BMW 730
To start off, 2005 Alpina Roadster is newer by 15 year(s). Which means there will be less support and parts availability for 1990 BMW 730. In addition, the cost of maintenance, including insurance, on 1990 BMW 730 would be higher. At 3,346 cc (6 cylinders), 2005 Alpina Roadster is equipped with a bigger engine. In terms of performance, 2005 Alpina Roadster (301 HP @ 6300 RPM) has 120 more horse power than 1990 BMW 730. (181 HP @ 5800 RPM). In normal driving conditions, 2005 Alpina Roadster should accelerate faster than 1990 BMW 730. With that said, vehicle weight also plays an important factor in acceleration. 2005 Alpina Roadster weights approximately 26 kg more than 1990 BMW 730. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2005 Alpina Roadster (362 Nm @ 4800 RPM) has 102 more torque (in Nm) than 1990 BMW 730. (260 Nm @ 4000 RPM). This means 2005 Alpina Roadster will have an easier job in driving up hills or pulling heavy equipment than 1990 BMW 730.
Compare all specifications:
| 2005 Alpina Roadster | 1990 BMW 730 | |
| Make | Alpina | BMW |
| Model | Roadster | 730 |
| Year Released | 2005 | 1990 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3346 cc | 2986 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 301 HP | 181 HP |
| Engine RPM | 6300 RPM | 5800 RPM |
| Torque | 362 Nm | 260 Nm |
| Torque RPM | 4800 RPM | 4000 RPM |
| Engine Bore Size | 87 mm | 89 mm |
| Engine Stroke Size | 93.8 mm | 80 mm |
| Engine Compression Ratio | 10.0:1 | 9.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1626 kg | 1600 kg |
| Vehicle Length | 4100 mm | 4920 mm |
| Vehicle Width | 1790 mm | 1850 mm |
| Vehicle Height | 1300 mm | 1420 mm |
| Wheelbase Size | 2500 mm | 2840 mm |
| Fuel Tank Capacity | 55 L | 90 L |
