2007 BMW Alpina vs. 2008 BMW 645
To start off, 2008 BMW 645 is newer by 1 year(s). Which means there will be less support and parts availability for 2007 BMW Alpina. In addition, the cost of maintenance, including insurance, on 2007 BMW Alpina would be higher. At 4,398 cc (8 cylinders), 2008 BMW 645 is equipped with a bigger engine. In terms of performance, 2007 BMW Alpina (500 HP) has 172 more horse power than 2008 BMW 645. (328 HP). In normal driving conditions, 2007 BMW Alpina should accelerate faster than 2008 BMW 645. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW Alpina weights approximately 160 kg more than 2008 BMW 645. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2007 BMW Alpina (700 Nm @ 4250 RPM) has 250 more torque (in Nm) than 2008 BMW 645. (450 Nm @ 3600 RPM). This means 2007 BMW Alpina will have an easier job in driving up hills or pulling heavy equipment than 2008 BMW 645.
Compare all specifications:
| 2007 BMW Alpina | 2008 BMW 645 | |
| Make | BMW | BMW |
| Model | Alpina | 645 |
| Year Released | 2007 | 2008 |
| Engine Position | Front | Front |
| Engine Size | 4397 cc | 4398 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 500 HP | 328 HP |
| Torque | 700 Nm | 450 Nm |
| Torque RPM | 4250 RPM | 3600 RPM |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1975 kg | 1815 kg |
| Vehicle Length | 5050 mm | 4830 mm |
| Vehicle Width | 1910 mm | 1860 mm |
| Vehicle Height | 1480 mm | 1380 mm |
| Wheelbase Size | 3000 mm | 2790 mm |
| Fuel Consumption Overall | 13.1 L/100km | 12.8 L/100km |
| Fuel Tank Capacity | 88 L | 70 L |
